Never run out of juice again with this Portable Keychain Apple Watch Charger Choose from white or black  Compatible with Apple watch Series 1, 2, 3 and 4 Material: ABS Input: 2W Max Connection: USB Perfect for long journeys and going abroad Dimension: 65mm x 33mm x 10mm Reliable, compact and small enough to put on your keychain Staying charged is key - get this Portable Keychain Apple Watch Charger - save 60%