Charger for Samsung Galaxy Watch 4/4 classic and Watch 3 and Active and Active 2 Specifications: Input/output: 5V/1A Net weight: about 25g Length: about 1m/ 39.37 in Package List: 1 x Charger NOTICE: Only fit for Samsung Galaxy Watch4 Watch3 Active and Active2, NOT fit for Samsung Galaxy Watch -R800/ -R810/-R850. Its a normal phenomenon that the charger may get warm while charging, please unplug the charger after charging. DO NOT plug the charging cable into a wall Charger with a current higher than 1A directly, as there is a risk of burning the smartwatch. We suggest that you charge your dock through a computer USB port. If your galaxy 4 watch shows Charging Paused, Please turn on always on display and turn off battery saving on your watch.