Review on Rokform Universal Dual Magnet Phone Adapter: Magnetic Mount for Smartphones, Tablets, and Devices (Black) by David Monaco

I don't know if I received one with inferior 3M adhesive but it came off this morning. The magnets are nowhere near as strong as those that come standard with cases. I usually use this product at the gym to hold my phone on the unit instead of keeping it in my pocket, but attaching the phone with two magnets doesn't work here, the phone slips and falls off almost immediately. I know it's not metal or anything because I used essentially the same products with my s20 ultra a few days ago. All in all, it's a poor replacement for real cases instead of your phone.