I had two Samsung flagship phones, one (S20FE) had an optical fingerprint reader and the other (S22) had an ultrasonic one. Both of them somewhat regularly failed to read my finger, were slower than a fingerprint reader on the power button and are more expensive/complex to build. They won’t work with cheap 3rd party screen replacements and some screen protectors as well.
Meanwhile my $90 Android phone has a fingerprint reader on the power button. It never fails and I never have to perfectly place my finger on the sensor area to get it to work. It just seems like the perfect place to put a fingerprint sensor, so why do phone manufacturers keep using in-display fingerprint readers over the cheaper alternative?
My Pixel 7 has the fingerprint reader behind the screen and it’s awful. Unless you’ve got the greasiest fingers of anyone who ever lived, it fails to log you in.
Instead the face recognition kicks in, and then fails when you try to make a payment, asking for your fingerprint again.
It’s fucking aggravating.
My crappy old Huawei thing has a separate panel for fingerprints and it never failed to work.
They said the same about the 6 but honestly it works pretty well for me most of the time.
Sorry, I have God fingers I guess. blessed by the finger maiden.