xXelDiabloXx

How accurate are smartphone fingerprint scanners?

Can smartphone fingerprint scanners be problematic if you've got wet hands (e.g. in the rain) or sweaty hands (e.g. in summer or when you're hot)?

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7 comments

JanSt / MOD  Jun. 4, 2014 at 19:34

I cannot speak for Samsung variety... The iPhone'sTouchID works well - I tried it after working in the garden. Fingers a bit dirty and sweaty. No problem.

matt101101 / MOD  Jun. 4, 2014 at 20:48

The iPhone 5S fingerprint scanner works extremely well; at least 9 out of 10 times, probably more. I've never used the one on the S5, but by all accounts it's nowhere near as reliable as the iPhone's.

JanSt / MOD  Jun. 5, 2014 at 09:17

The iPhone 5S fingerprint scanner works extremely well; at least 9 out of 10 times, probably more. I've never used the one on the S5, but by all accounts it's nowhere near as reliable as the iPhone's.
Yes, it does. And it's very fast. Initially, I thought it wasn't working because it reacted so quickly.
The image the sensor takes contains redundant information - more points of comparison than usually needed. That way a cut on your finger tip or some dirt etc cannot lead to malfunction as easily.

xXelDiabloXx  Jun. 5, 2014 at 11:31

That's reassuring! For the iPhone 5s anyway ;)

Treab  Jun. 5, 2014 at 19:45

just wanna say it can also be used if someone has a photo of your fingerprint ;)

JanSt / MOD  Jun. 5, 2014 at 19:48

just wanna say it can also be used if someone has a photo of your fingerprint ;)

Yes... and, boy, do many people have a penny sized HD photo of my pinkie :p

But seriously: I wouldn't recommend TouchID as a super-duper security
feature. It's convenient. That is all.

Treab  Jun. 5, 2014 at 19:52

well i know i have :p

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