The fingerprint unlock is definitely a handy feature with the phone, Bruce_br1999. I know I use mine all the time! As part of the ultra power saving though, it does eliminate the capability to use this feature. I have sent in this feedback to see if it could be looked into as a possible enhancement in the future with the phone.
Follow us on Twitter @VZWSupport
If my response answered your question please click the �Correct Answer� button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!