How to Use the Heart Rate Sensor on Galaxy S5
Galaxy S5 uses a built-in heart rate sensor to monitor your heart rate constantly and with more accuracy. To use Heart Rate Sensor on Galaxy S5 and ...
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Samsung Galaxy S4 like many other Android devices, supports Face Detection, and you can tag the detected faces as well. To enable or disable Face Detection on your Galaxy S4 do as follows:
1. After opening "Camera" app, tap on Option Key (or Menu Key which is on the left of the Home button)
2. Tap on Setting
3. Choose the first tab (with Camera icon)
4. Make sure "Face Detection" is ON (or OFF to disable it)
Read More Galaxy S4 Tips and Tricks