Check the brands Bellroy & Smartish on Amazon. They have a case with built in wallet. More on reddit.com

This is old, but for the sake of any future info seekers, here’s been my experience over 18 months of using the wallet: Magnet strength is pretty good. I only use the wallet, no phone case (Magback or otherwise). I can say it is far better than the apple branded wallet in terms of magnet strength. I bought an extra magstrip that I attached along my dash, and that has worked as an unobtrusive car mount. Phone has never fallen off it. The only thing with it, is wanting to be mindful of pulling the phone off of that strip, as the magnetic connection can be stronger than the 3M adhesive that attaches the strip to my dash surface. I’ve pulled it off before and had to attach a new adhesive strip (that came with it). That hasn’t happened in over a year now though. Don’t have to be super gentle, just mindful is all. I can hold my iPhone 13 Pro (not Max) upside down by the wallet loop and it will stay attached. If I tried to shake the wallet off though, it would detach. I carry 4 cards in it. It is very tight at first, but loosens up. However, once it’s stretched to accommodate those 4 cards, it becomes too loose if I want to hold less (I.e. I take one out, the wallet doesn’t snap close to those now 2 or 3, they can/will slide out; though will gradually shrink back over time (to a degree). Not to the point you could only slide in 1 card and be good, but if I took them all out, could use 3 the next day instead of 4 and be good. As for loosening up over time and becoming too loose to hold even the 3-4 cards I regularly keep in it, I have not had that issue. I don’t worry about anything falling out of it. I regularly carry my DL, debit card, and 2 cc’s. My complaint lies in the quality of construction. Now the warranty service is great, I’ve had no issues or hassle there. Send an email with an explanation and a photo, next day new wallet is shipped out, 2-3 days later it’s in hand. Unfortunately I’ve had to utilize that twice now. First one the stitching started coming apart along the right side of the wallet after 6-8 months or so. The replacement wallet then had the leather trimming along the wallets edges start to peel off within about 4-5 months. The third wallet I’m on now has been fine for the 3 months I’ve had it. The one blog review I read about it had the same problem with theirs (leather trim along the top edge peeled off) and got a replacement too. So- warranty replacement has been hassle free, but looks like there’s a common theme here. Hoping this one lasts, but we’ll see. More on reddit.com

Make a duct tape one like they used to do in the 90’s More on reddit.com

Spigen Liquid Air. Nice design Reasonable weight Great back and side grip Raised bezels for screen and camera lenses protection iPhone buttons are soft to press with Great drop protection as it perfectly protected my phones from hard falls on concrete Easy to wash The case never feels sticky or oily even after a long period of use Holes for mic and speaker are wide enough to prevent dust collection You can’t go wrong with this one. More on reddit.com