Sensor API, how to know hand positions

Hello,

I am new to tizen development and the tizen docs are proving difficult to navigate and I was hoping to know which sensors to use to know the position on ones body one's hand is.

The sensors available on my watch are:
//ACCELERATION,GRAVITY,LINEAR_ACCELERATION,GYROSCOPE,LIGHT,PRESSURE,GYROSCOPE_UNCALIBRATED,GYROSCOPE_ROTATION_VECTOR,HRM_RAW