The fingerprint sensor on the Samsung Galaxy S5 gets a little flack for its functionality, and that's mainly because the setup instructions ask you to swipe your index finger over the sensor to unlock your device or make mobile payments (and of course, because it was already hacked).
The problem with their recommendation is that is just about all cases, unless your device is sitting on a desk, you'll need both hands to perform the index finger swipe. One to hold the device, the other to swipe down your finger. Not exactly ideal for normal usage.
I'm going to show you how you should really... more