It may be that the charging interface of the watch is in poor contact, and it is necessary to check the connection status of the charging port and socket of the watch, and clean the charging contact of the watch;
It may also be that the voltage is too high during the watch charging, causing the watch to suspend charging, try to replace the appropriate charger to charge;
If the above factors are excluded, there may be a problem with the watch battery or power management chip, and you need to go to the after-sales service network for detection.
The first may be that when we are charging, the data cable is not bad, and it is OK to reconnect
The second case may be a data line problem, this time you have to replace the data line on the line
The third reason for the battery, because the charging watch is often worn, it will be compared to the battery, and you have to replace the battery
It could be the charger. Try a new charger