Designed specifically for the Apple Watch, Power Watch lets you view and get notified about your iPhones battery status. With either the Watch app or iPhone app, you can set the threshold at which you get notified, and at what battery percentage interval. The Watch apps interface color is also customizable to complement the colors of your watch face, so using Power Watch at a Glance will not ruin your choice of color scheme.
Important:
PowerWatch utilizes Background App Refresh (enabled by default), and requires it to be enabled to send you battery status notifications. Due to the mechanics of Background App Refresh, PowerWatch may sometimes be unable to send you a battery status notification at a convenient time. Thus, it is advised that you still monitor power using the Watch App, Glance, or your iPhone.