Apple Watch owners running watchOS 3 or later can use the Home app to control HomeKit devices around the house.
The Home app for Apple Watch is similar to the iOS version, with a carousel view of connected accessories and scenes. Most controls are simplified on the watch, but you can ask Siri to perform more advanced functions.
John Bakers replied on Permalink
I highly recommend using this awesome Apple Watch app to easily monitor your iPhone battery charge state from the wrist: https://itunes.apple.com/us/app/watchmybattery/id1024068907
Andreas replied on Permalink
The AW2 is expected to have much more opportunities for apps that check the iPhone battery like this https://itunes.apple.com/us/app/watchmybattery/id1024068907, but also to connect to most of devices