mobile phone Sensors

Used by apps to detect orientation of device and phone's movements, allowing features like shaking phone to change music.

Works with Accelerometer to detect rotation of phone, for features like tilting phone to play racing games.

Helps phone find the North direction, for map/navigation apps.

Automatically sets the screen brightness based on surrounding light, and conserves battery life

During a call, if the device is brought near the ears, it automatically locks the screen to prevent unwanted touch commands.