1. Open the phone Settings and tap [Battery].
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2. Turn on the switch on the right of [Wireless reverse charging].
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3. Place the watch in the charging position on the back of the phone and start charging.
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Huawei mobile phone to charge the watch requires hardware support. If the hardware supports it, you only need to enter the Settings of Huawei mobile phone > Battery, turn on the wireless reverse charging switch, place the watch in the center of the back of the phone, and start charging.
As long as the watch is owned by Huawei, whether it is the back or the front, as long as there is an interface.