Fully charge your Smart Watch within 2 hours. No need for bulky charging docks and long charging cables. You will not only admire its compact design and convenience but also love its large capacity power bank which makes it possible to charge your portable Smartwatch anywhere, anytime on the go. Start charging instantly and safely as soon as your magnetic charger is close to the back of your Smartwatch. DETAILS: Provide your Smartwatch a safe charging environment. Heat resistant, won't overheat the watch even when charged for a long time. Prolonged built-in 1100mAh battery life. Wide range of compatibility with all Apple watch models.