It’s no taller or wider than an iPhone, so it should slide into a pocket. It’s got a MagSafe pattern of magnets to attach it to your magnetic ring device. You don’t have to remove it to use your phone like a phone, because the whole gamepad retracts underneath, a little like the slide-out keyboard phones (or PlayStation Phones) of old — and now, it’s mounted on a spring-loaded arm that pops out at the push of a button and also slightly angles your device towards your face.