The Xiaomi wireless charger may be able to charge the Apple Watch, but the actual effect depends on two factors:
1. Charger power: Please check whether the power of your Xiaomi wireless charger is 5W required for Apple Watch. If the power is enough, then your Xiaomi wireless charger can be used to charge the Apple Watch.
2. Compatibility: Make sure your Xiaomi wireless charger is compatible with your Apple Watch. The Xiaomi wireless charger should support the Qi wireless charging protocol and have the Apple Watch charging logo.
If your Xiaomi wireless charger meets the above requirements, then it should be able to charge your Apple Watch. Note, however, that the Apple Watch's wireless charging speed may be limited, as it is primarily used for emergency charging or in situations where wired charging is not convenient. If possible, it is still best to use Apple's official or certified Apple Watch charger to charge it for best results.
①, about the above question, then you had better look at the battery capacity parameters inside the Apple Watch, such as: battery voltage, current, power and other parameters, whether it can adapt to that, millet wireless charger output voltage, current, power and other parameters, if it can adapt to the charge, [otherwise very useful].