Designed for Apple Watch: This portable apple watch charger is compatible with Apple Watch Series10987 6 543 2 SE Ultra 49mm 45mm 44mm 42mm 41mm 40mm 38mm. Power Bank for Apple Watch: This1200mAh apple watch charger portable can charge your iWatch about 1~1.5 times, your Ultra2/1 approximately 1 time, and your iWatch Series 1-9 approximately 1.5 times. (NOTE: Touch the side button once to start wireless charging for the Apple Watch). Compact Portable Design: This apple watch charger fast charging is easy to store and convenient to carry due to its Compact Portable design. The apple watch accessories is perfect for your outdoor trips, the stylish keychain design can be hung on your backpack at any time, convenient for travelling. Put it in your pocket and hang it on your keychain to make sure that you can charge your watch anytime when you are working, charging without hassle. Safety Protection: The iwatch charger features over-current, over-voltage, overheat and short-circuit protection to ensure stable and fast charging for both the iWatch and the charger. This apple watch wireless charger has a built-in strong magnetic attachment module that ensures your watch stays close to the center of the charger and prevents it from slipping off. What You Get: 1* Portable charger for apple watch; 1* User manual.