I bought the case a few days ago.
The truth is that I was looking for a good case with soft materials on the sides to prevent slipping. I had bought some others, but I returned them because they had all plastic parts and didn't have a good grip on the phone.
So I bought this specific one for the ULTRA 23 and I have the following to mention for those of you who want to buy it.
1. SOS and very important... !!! I bought a white SAMSUNG 45w charger that unfortunately doesn't fit in the opening at the bottom of the case because the cable is square-shaped, while the opening is oval. (pay attention to this). To solve my problem, I had to use the original cable (Black) that came with the phone.
2. As known, the touch to unlock the phone... "is difficult". The solution is one. either a pattern... or unlocking with the camera. I have both and I am satisfied.

Other than that, the case is very good... yes, it makes the phone bigger... but whoever buys this case knows that they will use it somewhere where they need to protect their phone... so it's good that it makes it a little bigger. After all, there are also cases that you can put on and only protect the back... it's a matter of preference.

The case makes the phone bigger than it already is, but it protects it very well. At least in sand and falls, not in water because I haven't tried it. As long as the case is closed properly, I don't think there will be a problem if you put the phone in water. It definitely makes it a bit difficult to use, but you clearly get this case for protection only!! The only negative thing, and that's why I give it 4 stars, is that the speaker doesn't sound clear even if you have the bottom "cap" open.

If I could give it -10, I would. It fell from a short distance, not even half a meter, and the screen of the brand new mobile phone broke