The smartphone sensors app list all the sensors available on the smartphone.

Sensor that can be check and test are :
Accelerometer
Ambient Temperature
Game Rotation Vector (cannot test yet)
Geomagnetic Rotation Vector (cannot test yet)
Gravity
Gyroscope
Gyroscope Uncalibrated
Heart Rate
Light
Linear Acceleration
Magnetic Field
Magnetic Field Uncalibrated
Orientation (cannot test yet)
Pressure
Proximity
Relative Humidity
Rotation Vector (cannot test yet)
Significant Motion (cannot test yet)
Step Counter
Step Detector (cannot test yet)

Next milestone:
Adding real time value to each sensor that available on the device. (80% done)

Icon Launcher is generated using Android Asset Studio by Roman Nurik (romannurik.github.io/AndroidAssetStudio).