I've wondered that as well since generally 99% of the population puts cases on their phones.Are the phone's magnets strong enough to grip my accessories with a case on it, or do I still need a case with magnets?
The color of the phone is kinda irrelevant as the case covers it all unless you get one of the clear cases, but I haven't found one as thin as I'd want yet. A few months in I don't have a clue what color phone I actually bought.For now going with matching Jade Pixel snap case. Will get a Bellroy leather case once they are out.
I saw a video somewhere it won't fit properly. Although same size overall, its something about the camera bar and the bottom openings I think.So as a sidenote if updating from the 9 Pro it is exactly the same size and I may use my old case as the new one I posted in post #2 fits my old phone perfectly. I like the new one as it is rugged , but my old one besides holding 2 CC (or 1 CC and cash) it also has a magnet built into it and a Qi charger charges through it. This new case seems to be too thick. I did add magnet to the back of it for my phone mount. I always plug my phone in for faster charging so not using a Qi didn't matter to me.