* If fingerprint sensor is on, then whether or not you use AOD will not have an effect on draining your battery, since the digitizer/screen is on anyway, right? Therefore, the only way to save battery with regards to fingerprint sensor, AOD, and screen is to disable both fingerprint sensor and AOD.

Do fingerprint scanners use electricity?

A capacitive fingerprint sensor uses a grid of tiny capacitors that store electricity, which is discharged only at the points where your fingerprint ridges touch.

What are the disadvantages for fingerprint scans?

Drawbacks or disadvantages of Fingerprint sensor

➨The accuracy and working of system is affected by skin conditions of people. ➨The system is associated with forensic applications. ➨There are health issues involved due to touching of single scanning sensor device by countless number of individuals.