The watch is normally inserted into the SIM card, and the SIM card has a balance, so the traffic plan is started. Every time the watch is turned on, it will automatically calibrate its position.

In addition, because of different brands, the performance of watches will be different. Some brands of watches rely on base stations to locate, and there is no GPS positioning function. However, the base station location often has a deviation of 500- 1000 meters, and the specific deviation distance needs to be determined according to the environment.

The positioning correction steps of watermelon skin watch are as follows:

1. After inserting the card, press and hold the power button to restart.

2. If no card is inserted, you need to insert a SIM card. First, choose a suitable SIM card, the size of which is a standard Nano SIM card.

3. Then insert the SIM card according to the picture.

4. Press and hold the power button to turn it on.

Strengthening the internet of things-a quick guide for children's telephone watches