Review on 📱 Waterproof Case for Samsung Galaxy S21 Ultra - Oterkin Full Body 360° Underwater Case with Built-in Screen Protector, Dustproof & Shockproof - 6.8 inch (2021), for Samsung S21 Ultra 5G by David Gonzalez

I experimented by placing a small piece of paper towel inside the case and then submerging the case with a weight on it to keep it submerged. I left it there for 30 minutes and after that I took it out of the water, dried it and opened the case and the paper towel was nice and dry! I am impressed! Also, it fits my phone perfectly. Fingerprint works great, I can take screenshots by swiping my hand across the screen. I have no complaints!