Nintendo Switch Joy-Con controllers work with Android phones and tablets
The gamepads themselves are rather small — which is not necessarily a bad thing, especially as far as mobile gaming is concerned — but offer a rather limited button setup due to their dual nature. Each has a single analog stick, four face buttons, and two shoulder buttons, which is pretty much what the SNES had to offer back in the day (with a D-Pad instead of a thumbstick, of course).
They may not really look like it, but the Joy-Cons are actually quite high-tech, as far as game controllers go, at least. They both pack advanced vibration feedback systems, capable of simulating... stuff shaking inside them. The controllers also have motion-sensing capabilities, are equipped with infra red motion cameras that can measure distance, and recognize shapes and motion. All the bells and whistles come at a cost though, and a pair of Joy-Cons will set you back $79.99, so we'd say Android users making a beeline toward the closest video game store is rather unlikely.
Things that are NOT allowed: