Xiaomi wireless charger can not charge Xiaomi watch. The output voltage is different. It's okay to use it once in a while but you can't just charge it up like a cell phone. When it's full, pull it off quickly. Don't charge for a long time. Not for long-term use. Easy to damage the battery. The performance is dissatisfied with the charge, and the power consumption is fast. If you turn the switch off without using WiFi, you can use it for more than 30 hours without any problems.