Connect the charging cradle to a power adapter, and plug in the power adapter.
Put your watch in the charging cradle. Align and attach the charging contacts of your watch to those of the charging cradle until you can see the battery level on the watch face.
When your watch is fully charged, 100% will be displayed on the watch screen and the charging will stop automatically. If the battery level is below 100% and the charger is still connected to the phone, the charging will start automatically. (You cannot use the watch when it is in charging)