This has probably already been pointed out, but they had one. It was called Xperia Play, and I owned one at one point. It was a “PS Official Product”, and even had the face buttons, D-pad, shoulder buttons, and two sensors that acted as the dual analogue. It was a really cool phone, but the Problem was it used Sony’s own Xperia Play Store, instead of Google Play, which was weird because it was Android OS. Needless to say, it wasn’t remotely successful.
I already mentioned it on my post. 😂 It failed badly because they don’t know what to do with it.
But with ROG phone and Razr phone they can have an Xperia line for those market. If they cannot beat Apple and Samsung on the mobile space then maybe they can find success with mobile gaming space.