Just flew FPV for the first time using Zeiss VR One Plus goggles, my smartphone, and Litchi. Man, 'immersive' mode is just that, don't try it unless you are sitting down! Kinda cool but very disorienting, can't say I really liked the experience. But it's pretty inexpensive to give it a try if you already have a smartphone with a hi-res display since all you need is a 3rd-party app and a set of under-$100 goggles.