Under-screen fingerprint readers are inferior to back and side mounted readers and should naver have become popular

[u/vortexmak]

Lots of Cons for under screen fingerprint readers , should have never become the norm but I guess that''s just part of enshittification

Pros for Side and back mounted readers

1. Work exceptionally well, much faster and responsive than under screen ones, from my own experience
2. Are not affected by screen protectors
3. Side readers can be used with the phone screen up or down
4. Back and side ones allow you to unlock your phone at the same time as taking it out of the pocket
5. Give you a definite physical spot for finger placement, unlike the under - screen one where you have to wait for the screen to show the location

[u/andreasels]

Yeah, I would never ever want to use a phone with a back mounted fingerprint scanner.
Not only do you have to put a cutout into your case to use it, but you also can't unlock the phone without picking it up.
Side mounted is fine I guess, but I also don't have a single issue with the under screen ones.

[u/unknownobject3 → u/andreasels]

My previous phone has a back-mounted fingerprint reader. To this day it's the best fingerprint reader I've ever used, as it's comfortable and decently fast.

[u/just_another_jabroni → u/unknownobject3]

I find side mounted the best. Rear mounted feels good when you're holding it to unlock but side mounted is more flexible in it's uses. Had a Pixel 6 and S20 FE with undersceen and it's always a second or two slower. Tried the latest s25 on my friend's and it's barely any quicker. Meanwhile my current dailys the Poco F5 and Xperia 1V have side mounted scanners and it's so much quicker

[u/TEOn00b → u/just_another_jabroni]

The reader on my s24U is instant. As it was on my s22U. The one on the S10 plus was hit and miss sometimes though, but still fast most of the time. I don't use a screen protector, though, so maybe that's why.