The solution to this situation:
1, it is recommended that you leave the area with high ambient temperature (or direct sunlight), and leave the watch screen for 10 minutes to wait for heat dissipation;
2, may be the watch side running state load is too high, resulting in heat. If the brightness of the watch is higher, you can restart the watch by reducing the brightness of the watch;
3, if the above investigation still can not solve the watch fever problem, and fever is obvious. It is recommended that you bring the watch and relevant documents to the nearest OPPO customer service center for processing.