Finger Print Scanners

[DanielLM]

Hi guys!
I need a bit of help here.
Does anyone know the generations of fingerprint scanners? I know there are 3 types and how they work, and I think Samsung brought the first generation on the Samsung s5.
Thanks!

 

[dontpanicbobby]

Not me. But I think the best ones are on the front where you can lay down your thumbprint with either the left or right hand depending on which one your holding it with.