OPPO R9 calculated the number of walking steps incorrectly. Where can I set it up?

① You can download music power, jogging circle, spring rain pedometer and other software in the software store to display the number of steps every day.

② The pedometer needs to run in the background to collect daily exercise data. If it is closed in the background, it cannot be collected. It is suggested that pedometer can be added with self-starting management and pure background operation.