Razer Kishi V2 Mobile Gaming Controller for iPhone: Console Quality Gaming Controls - Universal Fit with Extendable Bridge - Stream PC, Xbox, PlayStation Games - Ultra Low Latency - Ergonomic Design

As stated in the title it definitely fits a IPhone 13 Pro Max with or without a case, I have a slimline case and it fits once I have taken the rubber holds out, with the holds in you need to take your phone case off and tbh for the sake of quickly removing your case it’s a very comfortable fit even with the extra camera lenses at the back of your phone.The game play is awesome I connect it through Xbox cloud and have been playing my games (AC Odyssey) quite comfortably, there is a little lag at times but comparing it to Bluetooth it’s so much better.I am able to charge my phone through the lightning port.Definitely worth the money, I’ve not tried any other devices like it other than using my Xbox controller via Bluetooth, the joy sticks are a bit closer than using the normal Xbox controller however this isn’t much of a change and when playing certain games such as COD mobile this is still really good to use.I hope this helps anyone buying this and I would highly recommend anyone wanting to find the right mobile controllerHappy gaming 🤘🏻

Had the v1, which finally died after a couple of year of reasonably heavy use. This one is a modest but noticeable improvement on ‘feel’ when using.

It’s got a lightening connector not USBC….