So does a Perdix non-AI (and a Petrel and a Predator). AI has nothing to do with TTS. TTS is purely depth, ascent rate, and required stops. TTS will not tell you if you are going to run out of gas before you get to the surface.
My bad. I was using the wrong acronym. I should have said GTR ... gas time remaining. A completely different beast than TTS. With the Perdix AI you can see your NDL, TTS, GTR and pressure all on your wrist. That is the convenience I was referring to. I was just using the wrong acronym.