...I'm looking to do FPV with the
Mavic Air 1.
...I've found that there are a couple apps that will let you use your phone in an inexpensive VR headset to do VR.
The apps I've found are DroneVR+ and Litchi... The resolution should be decent, but I'm wondering how the lag is.
Yeah ... understand, you want to try out box
goggles. Those are
goggles where you put in your phone directly ... so lag will not be any bigger problem just because you move your phone from the remote & into the
goggles.
You mainly have 2 types of box
goggles ... one with 2 lenses, one for the right eye & one for the left. This type usually needs a special app (Like Litchi with it's FPV mode activated) which displays 2 equal views on the screen ... meaning it creates a poor kind of 3D image. So you can't use DJI GO4 directly as that "FPV view" feature doesn't exists there. So that is one draw back with the 2 lens variants of box
goggles.
This is how Litchi looks like with the FPV mode activated ...
Then you have the single lens
goggles ... one big lens that just makes it possible to view the phone screen from a very short distance. In
goggles like this you don't need any special app ... you can use GO4 directly, or watching a YouTube movie or something else. I have these -->
MovieMask - Your Portable Cinema I'm just moving the phone from the remote into the
goggles with the USB cable still attached to the remote.
The picture quality is really good, don't have any complaints there, no lag as said before it's equal to have the phone in the remote. The only gripe is as with all
goggles ... fit on your face & viewing distance. I have glasses normally & they fit inside, but they can't handle the short viewing distance so I use a pair of cheap reading glasses that work.
This is how it looks taking a photo into them ... (the bar in the middle isn't visible when you wear them)
But the major backside with box
goggles in general is that you can't reach the phone when you're flying, you need to do all adjustments before you put the phone inside the
goggles ... & if you want to start/stop videoing you need to use the buttons on the remote ... blindfolded, but it's manageable if you just want to fly around without fiddling with camera settings or other menu thing's
My phone is a Samsung Note 20 Ultra 5G.
This can also be a draw back ... I have a Samsung S20+ & that is to big for the moviemask in the sense that I can't see the whole screen, can't look around that much with my eyes. Use my smaller Samsung S8 instead, it works perfectly in size, can see the whole screen with that.