This compact portable charger is a must-have for Apple Watch users on the go. Small enough to slip in your pocket, it provides enough battery to fully charge your iP Watch 2-3 times before needing to be recharged itself. A digital display clearly shows the remaining power so you always know your backup battery's status. Simply snap your watch on to charge, as the auto-sensing technology ensures a secure and efficient charge up to 60% in just 50 minutes. Safety features like over-current and overload protection keep your devices safe during charging. Its universal compatibility works for all generations of Apple Watch. Now you'll never have to worry about your smartwatch dying before the day is done with this pocket-sized power solution.