Kanex GoPower Watch, Apple Certified Portable Cordless Battery for Apple Watch and iPhone The first of its kind, GoPower Watch starts charging your Apple Watch at the touch of a button. Thats it! Its cordless charging on the go GoPower Watch is Apple MFi Certified, which means its specifically made to fit with your Apple Watch and iPhone, so you can expect quality performance and reliability With a 4,000 mAh battery capacity, GoPower Watch can charge you Apple Watch up to six times before it needs to be recharged; Up to 6X Extra Battery GoPower Watch will charge your iPhone and Apple Watch at the same time; Durable, lightweight, ergonomic construction and soft touch housing The LED indicator displays battery levels and charge status. And your watch lays flat on the charger, making it easy to use its touchscreen and other features while charging GoPower Watch enables pass-through charging while connected to a power source. Your device charges first, then GoPower Watch recharges itself