I have found the my video framerates are not consistant on either of my Android phones when using the DJI Go app with my Osmo 2.  I am using a Samsung S7 and an LG G6 both using Android 8.0.0.  I have my camera set to shoot 30 fps most of the time, and when I import my footage the framerates bounce around from clip to clip.  Some will be 24.53fps, some 27, 28, or even 30.  I can use the stock camera app, but would like to be able to utilize some of the features of the DJI GO app.  

I actually have the same issue with my Oneplus 5T (which is in the list of officially supported phones) Tried shooting 60fps footage and I got 47fps +/- fluctuating. Would be great if DJI could update their app to fix all this issues