Here is another waterproof smartphone case that you can use to capture amazing over-underwater photos. The Mobile Mini Dome iPhone Case is compatible with devices up to 7 inches. It is IP68 rated. It features a DomePort for creating over and underwater photographs. You don’t need any special app to use this case.
Thanks to this case, you can use your phone’s touchscreen function under water. You can attach a handle-stick to the case to move your phone more easily.[where to find it]