Gamesir is preparing to launch its first vertical mobile controller called the Pocket 1. It features a design that clips onto your phone.

If you’ve ever tried to play a “real” game on a touchscreen and bounced off the controls, this is the kind of accessory that ...

The AYANEO Pocket Play is different. Sure, it’s a smartphone with a touchscreen display. But it also has a slide-out game ...

There’s no shortage of game controllers designed to turn smartphones into handheld game consoles with physical buttons. But most are designed to clip onto the sides of your phone, adding bulk.