If you use a third-party charging stand, take the charging cable that came with the Apple Watch. If you cannot charge the Apple Watch or a message appears stating that charging with this accessory is not supported, follow these steps. Make sure that the Apple Watch magnetic-charging cable is fully inserted into the USB power adapter, then check that the adapter is fully inserted into the power outlet. Make sure you are using the magnetic charging cable and the USB power adapter that came with your Apple Watch. Remove the plastic film completely on both sides of the charger. Make sure that the back of the Apple Watch and the charger are clean. Put the Apple Watch back on the charger. The charger magnets will align the Apple Watch, and a green lightning bolt icon will appear on the screen. If the Apple Watch still does not charge, force a restart. Press and hold the side button and Digital Crown for at least 10 seconds until the Apple logo appears. Try a different magnetic watch Apple Watch charging cable and a different USB power adapter. If the Apple Watch is low, connect it to the charger and wait a few minutes until the charging icon appears.