Here is a waterproof housing for iPhone XS and iPhone X that lets you dive to 33′ with your smartphone. The AquaTech AxisGO Waterproof iPhone XS Case has a polycarbonate/aluminum/stainless steel construction. It has an interchangeable optical glass lens port. You will be able to use the front and rear camera on your phone.
This waterproof housing allows for full touchscreen operation. It has an ergonomic handgrip with an optional pistol grip. You will have to part ways with $199 to get one though.
[where to get it]