Huawei wireless charger can be used for wireless charging of Apple Watch. You only need to connect the power supply and put the device on the charger to contact the charging interface.
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Look at Huawei's wireless charger does not support the QI protocol, if it is supported, it can be charged, but it will be slower, it should be able to 7.5W.
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The iPhone 12 supports the QI wireless charging protocol, as well as the unique magsafe protocol.
It's alright to me! Huawei's reverse charging function, paired with the Apple Watch's wireless charging technology, is OK. If you are not talking about wireless charging, then it is not possible. Because the device for the Apple Watch must be a USB port, Huawei's port is not a USB port. Interface inconsistency is not able to charge for it! A charger is recommended because the voltage is stable. For reference only
Yes, Huawei has a backcharge function, which can charge the iwatch wirelessly