Try Another Apple Watch Charger

1. Try plugging your charging cable into a few different power sources. If you normally charge with a wall outlet, try plugging into your computer or car.
2. Make a note if your Apple Watch begins charging when plugged into one power source and not another.

Why this works:

It’s possible your charger is the reason why your Apple Watch is not working. If your Apple Watch isn’t working with any charger, there’s probably a problem with your Apple Watch. If other chargers work, there’s likely a problem with the charger, not your Apple Watch.