Wearable technology allows you to keep abreast of many things, but one thing we never really expected was its use as a controller for games. That is exactly what has happened with Android game Aces of the Luftwaffe, which allows you to use the Sony SmartWatch 2 and SmartBand as a controller for the game.
Judging by the video demo below, it seems to work pretty well. The game involves fighting waves of Axis planes and panzers until you hit the boss enemies in the Battle of Britain. You can download Aces of the Luftwaffe from the Google Play Store.