Apple added official support for Made for iOS Game Controllers in iOS 7, but the game controllers launched till now all connect via the Lightning port. SteelSeries today launched Stratus, the first wireless game controller that connects via Bluetooth.
The controller has a D-pad, two analog sticks, and 4 pressure sensitive face and shoulder buttons. It connects via Bluetooth 2.1, and not the newer Bluetooth 4 Low Energy standard, and boasts a battery life of 10 hours. You can connect up to 4 controllers to play a multiplayer game, with the LED on the device letting you know whose turn it is.
The folks at TouchArcade took the controller for a spin, and they found it much better than the other MFi controllers:
With so few iOS 7 controllers out there, we’re grading these devices on a significant curve. Inside of this microscopic accessory ecosystem, the SteelSeries Stratus is without a doubt the best controller out there. It sheds the drawbacks of previous controllers, and barring the incredibly unlikely scenario that Apple phases out bluetooth integration, should be totally future proof. Using a controller to control a iOS game you’re piping to your TV with the Lightning Digital AV Adapter is really neat, and I waffle back and forth on whether or not I like the small size.