On your watch:

Press the Up button and go to Settings > About to view the Device name, Model, Version No., SN, Bluetooth name, and IMEI.

Actual interface may vary. You could also try finding the information through Settings > About watch or Settings > System > About.

HUAWEI WATCH 3/WATCH 4 Series: To query the device EID, press the Up button on your watch and go to Settings > Mobile network > eSIM > Settings.

On your phone:

Open the Huawei Health app, navigate to the device details screen, and touch Device info to find Name, Model, SN, and MAC address for your watch.

: Go to Huawei Health > Devices > General settings > Device info to view the Name, MAC address, Model, and SN for your watch.