This is perfect for active Apple Watch users like myself. Depending on my activity level, app usage and forgetfulness - there is no telling when my watch will hit its reserve power mode request.
According to Griffith Technology, its 800 mAh battery is good for four charges of the Apple Watch. This small key chain accessory won't get in the way and it will be hard to forget, since its attached to my keys. At only $69.99, I'll be adding one to my accessory case. That is unless someone creates a solar-powered watch band.
