The shell 1a has kept close, there was not even any problem. The loop can also prima fix the envelope including mobile arm, so you need not always keep it.
The control of the phone works almost without problems over water. Of course not so highly sensitive as without shell, but just what Typing is not a problem. Underwater control, however, is limited, but this has in no way related to the envelope. Therefore, it is advisable to start shortly a video about water, dive and movies until the memory card is full. Photos can it, after all, also make ;-)
The shell is not particularly sensitive. We have reingepackt sometimes with the phone the car keys and some money. So one must not be afraid when you're in the water, that the valuables unattended at the beach lying around. The shell has everything weggesteckt super.
However, one should of course in the evening also clean the shell after a day on the beach / in the water again, so that no grains of sand can sneak into the seal.
Conclusion, the shell is worth every penny, I would even double figures. Because you can thus make not only great photos and videos on the waterfront, but also store a few minor valuables so they do not have to lie unattended on the beach.
