Tool Application Compass depends on the performance of your device exactly. If the compass works perfectly, it means that your sensors are perfect, too.
If it is inaccurate, please check that yours aren't being affected by a magnetic field. This app have several options to calibrate your device.
9Apps 4.9
![Fix Compass Calibration Issues on Android [How-To] screenshot 4](https://i.ytimg.com/vi/-Uq7AmSAjt8/mqdefault.jpg)
