Jiaming watches are not allowed to be placed high on the plane.

If the height of your Jiaming watch on the plane is not accurate, you can try the following methods to calibrate it:

1. Use GPS calibration function: Turn on the GPS function of the watch in an open place, wait for a few seconds until the GPS signal is stable, and then calibrate according to the prompts.

2. Use the barometer calibration function: In an outdoor open place, turn on the barometer function of the watch, wait for a few seconds until the barometer reading is stable, and then calibrate according to the prompts.

If you still can't solve the problem, I suggest you contact the after-sales service team of Jiaming Watch for further help and support.