Tenmtoo Gym Magnetic Phone Holder

It meets all the requirements, has a strong magnet and sticks very well, good stability.

Recommend this one! The magnet in the back is really strong, hard to detach once attached.

The magnets are very strong! They hold my iPhone Pro Max without any problem.

I love this, highly recommended. The magnet stays perfectly.

For its price, it's of good quality and very convenient to hang the phone in the gym.

Very good product, the magnet is strong and doesn't come loose easily!