I really liked it and it fits my S23 Ultra perfectly. I haven't tested it in the water yet, but it looks quite safe.
Only praise for this cover! I bought it thinking about protecting it not only from water, but also from impacts. I am making the transition to a new main smartphone because I didn't take enough care of my current one. This case has a kind of wonderful little airbags on the sides. Not just 1 but 2 support points with straps (which I replaced for personal preference), and it's also good even without the straps. It allows you to use the touchscreen without any problems, as well as press the button to turn the screen on and off (I made a discreet mark with a permanent marker to indicate the position of the button). And the most important thing in my opinion: it doesn't require me to remove the (rather bulky) protective case from my 6.7" smartphone!
The product quality looks good. i tested it by putting a tissue paper inside and submerged the porch in a bucket of water for over an hour that the tissue is still dry.
Excellent product, looks of very good quality, a bit small for the iPhone 16 Pro Max.
It’s nice but not yet try it in water. Not sure if it’s really water resistant.