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Why the Samsung Galaxy S22’s Fingerprint Reader Places the Pixel 6 to Disgrace – Evaluate Geek


Justin Duino

Regardless of the Pixel 6’s bizarre bugs and unreliable software program updates, it’s arguably probably the greatest Android gadgets of all time. Clients have only one huge grievance; the fingerprint reader sucks. Actually, it left such a nasty style in critics’ mouths that they’re now pointing to the Samsung Galaxy S22’s fingerprint reader as its Pixel-beating function.

At a look, this may increasingly appear to be an unfair comparability. The Pixel 6 is a revolutionary new cellphone with a custom-made Tensor processor, so we are able to’t count on perfection. But when Google desires to nail its upcoming Pixel 7 launch, it must study from Samsung—an organization that when discovered itself on this very predicament.

Yeah, the Pixel 6 Fingerprint Reader Stinks

Close-up of the Google Pixel 6 Pro camera bump
Justin Duino

Inside days of the Pixel 6 launch, clients started complaining that the cellphone’s fingerprint sensor was unreliable or non-working. Some individuals theorized {that a} bug was liable for the issue, whereas others claimed that sure display screen protectors confused the cellphone’s biometrics system.

Google took a distinct stance—mainly, it advised clients “you’re utilizing the cellphone fallacious.” The corporate drafted a Assist web page explaining that you’ll want to firmly press your finger towards the cellphone’s sensor, and that pulling your finger from the cellphone too shortly will confuse its “enhanced safety algorithms.”

Now, Google did give clients some helpful suggestions. The corporate suggested that clients preserve their arms moisturized, which completely improves fingerprint reader accuracy (and your probabilities of scoring a scorching date). However total, Google’s recommendation wasn’t all that useful—the Pixel 6 fingerprint sensor stinks, and no quantity of moisturizer will resolve that drawback.

Just a few weeks after educating individuals to moisturize, Google pushed a software program replace to enhance the Pixel 6’s biometrics. Anecdotally talking, we consider that this replace was useful. However clients complain in regards to the Pixel 6 fingerprint sensor simply as a lot as they did in November of 2021, so the replace clearly didn’t do sufficient.

Possibly Google will use future updates to additional enhance the Pixel 6 biometrics, however these updates won’t ever resolve the issues that clients are complaining about. I can say that confidently, as software program isn’t the one factor that may make a fingerprint sensor sluggish or inaccurate.

Optical Vs. Ultrasonic: It’s All Within the {Hardware}

Samsung Galaxy S22's ultrasonic fingerprint sensor
Justin Duino

Most smartphones with in-display fingerprint readers, together with the Pixel 6, use “optical” sensors to confirm your id. These optical sensors are mainly simply cameras—they illuminate your finger, snap a fast photograph, and examine that photograph to all of the fingers in your biometrics settings.

There are some severe drawbacks to optical scanning know-how. In case your fingers are soiled, dry, or moist, then they could not appear like “your” fingers anymore. To not point out, the optical scanning course of generally is a bit sluggish, and your fingerprint might look totally different relying on how arduous it’s pressed towards your display screen.

Samsung will get round these hurdles with distinctive “ultrasonic” fingerprint sensors, which use sound waves to create 3D maps of your fingerprints. As you would possibly count on, these 3D maps present much more element than easy 2D pictures.

That further element results in a rise in accuracy. In case your fingers are dry, as an example, the ultrasonic 3D map will nonetheless comprise sufficient information for identification. Plus, stress sensors in Samsung telephones can inform how arduous you squish your fingers towards the display screen and compensate for his or her change in form. (Nonetheless, optical fingerprint sensors are nonetheless a bit quicker than ultrasonic choices, as they carry out much less detailed work.)

I ought to notice that ultrasonic sensors are technically safer than their optical cousins. Merely put, a 3D map of your fingerprint is more durable to duplicate than a 2D picture. However I don’t actually contemplate this an space of concern—if somebody desires to interrupt into your cellphone that badly, they’ll ultimately discover a manner round any biometric methods.

Google can solely pull a lot out of its optical fingerprint sensors. Software program updates can enhance the know-how, for positive, however substantial change requires new {hardware} … proper?

There’s Nonetheless Hope for Google’s Optical Fingerprint Sensor

Google Pixel 6 Pro's front-facing camera
Justin Duino

The primary in-display fingerprint sensors had been horrible. Nonetheless, many producers thought of the know-how a necessity—-the iPhone ditched its House button, which doubled as a capacitive fingerprint sensor, and different manufacturers needed to do the identical.

Have you learnt which model had the perfect in-display fingerprint sensor? Properly, I’m unsure both, but it surely wasn’t Samsung.

After a number of years of sticking capacitive fingerprint sensors on the backsides of its telephones, Samsung determined to debut the ultrasonic in-display sensor. The consequence was an amazing disappointment. Samsung’s Galaxy S10 lineup was extensively criticized for its use of the ultrasonic sensor, which was sluggish, inaccurate, and unable to perform with some display screen protectors.

At the moment, optical sensors had been noticeably quicker than Samsung’s ultrasonic different (they’re now simply barely quicker). However they had been nonetheless fairly darn sluggish, unreliable, and unpopular amongst many critics and clients.

Cellphone producers, particularly Samsung, have successfully resolved most of those issues. And this improve in high quality isn’t the results of loopy, groundbreaking modifications. Corporations have merely stayed the course and made incremental enhancements to {hardware} and software program.

Google hasn’t had the possibility to make such enhancements—the Pixel 6 is its first cellphone with an in-display fingerprint sensor. And like Samsung, it’s going to bounce again.

Whereas many individuals are actually encouraging Google to make use of an ultrasonic fingerprint sensor in future Pixel gadgets, I’d be stunned if the corporate makes such a dramatic change. Optical {hardware} isn’t the issue right here; Google made a nasty fingerprint sensor, and it wants to enhance each software program and {hardware} to make a superb fingerprint sensor.




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