So you love playing games on your iPhone? The Xiaomi Mijia Feizhi WASP Controller lets you perform better. Wasp-N and Wasp-X are compatible with iPhone 8 and iPhone X/XS respectively. They cover one side of your screen with joystick and buttons to control your characters.
The controller is plug & play and lasts about 15 hours on battery. It is compact enough to easily fit in your pocket.