Did that and it is outputting 568 × 320
You need the iMovie app to upload 720p directly to YouTube from your iPhone.It is 720p. It won't upload to YouTube directly from the phone in 720 though. You have to take it off the phone via iPhoto and then upload it to YouTube.
ok figured it out...You cannot upload to YouTube ( as already stated ) nor can you email a 720p, So like the one poster said, if you import thru iPhoto is is infect 720p.....
You need the iMovie app to upload 720p directly to YouTube from your iPhone.
Another poster already discovered this lovely $4.99 "feature".
https://forums.macrumors.com/threads/947280/
If I don't have or want imovie...are the videos I shoot 720p or not lol