Wired USB Controllers + OTG Adapter
✅ Android: With a compatible OTG adapter, wired USB controllers may be used with Android. I currently use this OTG adapter with a Nexus 5X and a wired Xbox controller. Check for compatibility with your mobile device.
❌ iOS: Will soon support the Gamepad API, but does not allow wired controllers.
Wireless / Bluetooth Controllers
✅ Android: Some Bluetooth controllers are compatible with Android. Others have tested this: check compatibility with your device.
Wired/Wireless Controller + WebRTC or WebSocket Proxy
For experimental purposes, you can connect a gamepad to your PC and send input to a mobile
device over WebRTC or WebSockets. Proof of concept:
✅ Android: Supported via WebRTC, averaging 10-30ms latency in my tests.
✅ iOS: Supported via WebSockets, averaging 30-70ms latency in my tests.