In some cases you may notice that video is choppy when playing back higher resolution videos that have been downloaded through the GoPro App and played back on a phone. Some phones can have a difficult time playing back high resolution video smoothly. If playback is choppy the actual video file is likely fine, it is just a playback issue on the specific phone and will likely play back smoothly on other players
As a workaround, you can try using 1080-30 or downloading the low resolution videos instead.
For more information, check out these articles which have charts displaying the resolutions that certain phones may have a problem with.
Android & Windows Android & Windows phone users should able to download ALL videos regardless of the resolution. Unlike iOS, these operating systems to do not place any playback restrictions on the size or quality of the video.