There are many virtual reality headsets that let you get a more immersive gaming experience. The Nautilus VR HMD is special as you can use it underwater to experience virtual underwater reality. It lets you breathe easily and offers a 90-degree FoV. Just insert your phone into the headset, and you are set. The device is compatible with the iPhone 6, Samsung Galaxy S5, Sony Xperia Z3, and other top smartphones.