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I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 1
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 2

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 3
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 4

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 5
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 6

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 7
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 8

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 9
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 10

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 11
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 12

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

I picked up a new smartphone to review the other day. As is my practice, I dived into fishing out every little bit of info about it and in the process, I stumbled on the fact that it has a 3D ultrasonic fingerprint sensor for biometric authentication. That inspired me to write an article explaining the different types of fingerprint scanners found in cell phones today.

The first thing to point out is that while all fingerprint sensors provide your phone with security, the level of accuracy, detail, and security they provide differs from one type to another. How fast they work also differs from one type to the other. Some types of fingerprint scanners also work better under certain conditions that others perform poorly in.

Pixel 5a 5G fingerprint scanner - 13
  • Types of Fingerprint Scanners
  • Optical Fingerprint Sensors
  • Capacitive Fingerprint Sensors
  • Ultrasonic Fingerprint Sensors
  • Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary
  • Which type of fingerprint scanner is best biometric authentication?

Types of Fingerprint Scanners

Regardless of the location of the fingerprint scanner on a phone – In-display, rear, or side, there are three types of fingerprint sensors in use in cell phones today. They are: Optical, Capacitive, and Ultrasonic. Which type is used in a particular smartphone depends on a number of factors, including cost.

Optical Fingerprint Sensors

These sensors use light to scan the fingerprint and create a 2D image of the fingerprint. They are generally less expensive than other types of sensors but may not be as accurate and can be fooled by fake fingerprints.

Optical sensors are the most common type of fingerprint sensors found in a wide range of smartphones, from entry-level models all the way to premium flagships. The list of cell phones with an optical scanner include older flagships like the Samsung Galaxy S21 and Pixel 6 Pro, as well as more budget models like Pixel 4a, Motorola Moto G Power (2021), and LG Stylo 6.

Capacitive Fingerprint Sensors

These sensors use electronic capacitors to scan the fingerprint. They can detect the ridges of the fingerprint and are more accurate than optical sensors. They are commonly used in smartphones and are fast and reliable.

A capacitive sensor is much more difficult to fool than an optical scanner, because the results can’t be replicated with an image, and even are difficult to fool with a prosthetic, as different materials will record slightly different changes in charge at the capacitor. This makes capacitive fingerprint scanners much more secure than optical ones.

Capacitive fingerprint sensors are popular among budget and mid-range smartphones. Some examples of popular smartphones with a capacitive fingerprint sensor include: iPhone 5s through to iPhone 8, Google Pixel phones all the way to Pixel 5, OnePlus 8 and 9 models, and Nokia 5.4.

Ultrasonic Fingerprint Sensors

These sensors use ultrasonic waves to create a 3D image of the fingerprint. They are more accurate than optical sensors and can work even if the finger is dirty, oily, or wet. They are also more expensive than other types of sensors. Ultrasonic fingerprint scanners are the most secure. They are also the ones used in premium flagship smartphones.

Examples of phones with ultrasonic fingerprint sensors include Samsung Galaxy S23 , S23+, and S23 Ultra, Samsung Galaxy Z Fold4, Samsung Galaxy Z Flip4, and Motorola Edge+.

Samsung S23, S23 Plus, and S23 Ultra all use an ultrasonic fingerprint sensor.  - 14

Samsung’s S23 range use ultrasonic fingerprint sensors

Ultrasonic vs Capacitive vs Optical Fingerprint Sensors, in Summary

The main differences between an Ultrasonic fingerprint sensor, a capacitive fingerprint sensor, and an optical fingerprint sensor are:

  • Accuracy and Security : Ultrasonic fingerprint sensors are more accurate, and thus more secure, than optical sensors because they create a 3D image of the fingerprint, while optical sensors can only create a 2D image. Capacitive fingerprint scanners sit in the middle, in terms of accuracy.
  • Speed : Traditionally, capacitive and optical sensors were initially much faster than ultrasonic fingerprint sensors. But the technology keeps maturing and the speed difference has been reduced to the barest minimum, if at all it still exists. On the Samsung Galaxy S23 which we reviewed , the 3D ultrasonic fingerprint scanner is very fast.
  • Environmental conditions : Ultrasonic sensors can work even if the finger is dirty, oily, or wet, as well as in low-temperature conditions and strong sunlight. Optical sensors may have difficulty reading fingerprints in these conditions.
  • Cost : Implementing an optical fingerprint scanning technology is generally less costly than implementing a capacitive or an ultrasonic fingerprint scanner. As such, optical scanners tend to be found in low-cost smartphones, capacitive in mid-range and budget smartphones, while ultrasonic scanners are found only in the most premium smartphones.

Which type of fingerprint scanner is best biometric authentication?

The answer is obvious: 3D ultrasonic fingerprint sensors are the best type for for biometric authentication in smartphones and other mobile gadgets. They offer the best accuracy, security, and have become really fast. If you can afford a premium smartphone that has one, buy it. If not, a budget device with a capacitive scanner will do just fine.

Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004

Add MobilityArena as a preferred source on Google

Lucid cars are made by an American automobile company called by the same name: Lucid. It has its headquarters in Newark, California, where their cars are designed. The vehicles are manufactured at the company’s factory in Casa Grande, Arizona.

Lucid started out in 2007 under the name Atieva and produced electric vehicle batteries and powertrains for other vehicle manufacturers. The company rebranded to Lucid Motors in 2016, announced its new direction of making electric vehicles, built its Arizona factory, and began manufacturing cars in 2021.

The Air Touring is one of the latest Lucid Cars  - 15
  • Lucid Cars Are Made in America
  • What kind of cars does Lucid Motors make?
  • Specs and Features of the Lucid Air Range
  • The Tesla Influence
  • References

Lucid Cars Are Made in America

Lucid Motors is one of the few car makers with manufacturing facilities in the United States. And it reflects in the prices of the vehicles. Lucid electric cars are relatively pricey, but if you are looking for a made in America car, perhaps it is worth the price.

Lucid cars will also soon be made in Saudi Arabia. The Saudi Arabia facility is expected to go on stream in the 3rd quarter of 2023 [1] and produce electric vehicles for the Middle East market.

What kind of cars does Lucid Motors make?

Lucid’s focus is the high performance electric vehicle market. For example, the Lucid Air Touring has a 620 electric horsepower engine with a range of up to 425 miles. When you need to go, it goes from 0 to 60 miles per hour in 3.4 seconds. It sells for $107,400. The Volvo EX30 Ultra trim, with similar performance, sells for about half that price. The Volvo is manufactured in China where production costs are much lower.

But then, perhaps in true American style, the Air Touring has futuristic features that you won’t find in an EX30. Consider the 34-inch, 5K floating screen that curves around you, presenting vital info conveniently in your sightline. It sounds like the stuff of science fiction movies. I imagine it must be cool to experience. This experience is available in all Lucid Air variants (there are four of them).

air touring Glass Cockpit - 16

The Air Touring’s cockpit

Also available across the Lucid Air range is a facial recognition system that scabs your face when you sit in and automatically adjusts select settings to your preferences. If you love your music like I do, there is an optional 21-speaker Surreal Sound Pro system that you can add. You read that correctly: 21 speakers.

Lucid cars definitely have a cool factor that makes the steep prices worth it, if you are into cool cars. As a matter of fact, the Lucid Air has received positive reviews for its range, power, handling, and luxury features. It also received numerous awards for its innovative technology and design, including being named one of Time Magazine’s Best Inventions of 2020.

The top-of-the-line Lucid Air variants, Grand Touring and Sapphire, are reputed to have the longest-range for any EV currently on the market, and they beat out the BMW 7 Series / i7 and the Genesis G90 to take the prestigious 2023 World Car Awards prize.

As mentioned before, the Air Touring is only one of the four variants of the Lucid Air. Others include the Air Pure, costing from $87,400 (approximately €79,250), the Grand Touring, costing from $138,000, and finally the most expensive in the range, Air Sapphire, costing a whooping $249,000 (around €225,775). I did say that Lucid cars were pricey.

Specs and Features of the Lucid Air Range

  • Aire Pure has a 480 electric horsepower engine with a range of 410 miles, and it accelerates from 0 to 60 miles per hour in 3.8 seconds. It takes only 15 minutes to get enough charge for a 200-mile drive.
  • Air Touring has a 620 electric horsepower engine with a range of up to 425 miles, and accelerates from 0 to 60 miles per hour in 3.4 seconds. Charging time is the same as that of the Air Pure.
  • Air Grand Touring has a 1050 electric horsepower engine with a range of up to 516 miles, and accelerates from 0 to 60 miles per hour in 2.6 seconds. It takes only 12 minutes to get enough charge for a 200-mile drive.
  • Air Sapphire has a 1200 electric horsepower engine with a range of up to 516 miles, and accelerates from 0 to 60 miles per hour in less than 2 seconds. The Air Sapphire literally takes off. It charges at the same speed as the Grand Touring.

The Tesla Influence

Did I also mention that Lucid Motors was founded by former Tesla executive, Bernard Tse, and businessman, Sam Weng? You can see the Tesla influence in the design of Lucid cars, and even better, those designs leave Tesla designs in the dust. I consider it a case of standing on the shoulders of a pioneer to innovate even more.

References

  • Lucid To Launch Saudi-Assembled Vehicles This September ( source )
Author:Mister Mobility

Digital Skills and Communication Coach | Mobile Phone Connoisseur since 2001 | Tech Blogging since 2004