Is there a way to determine right on the iPhone what a video's resolution and frame rate are? Last night I took a bunch of videos with different settings, and aside from zooming in during playback, it's hard to tell which are which. Needs to be a way to see the metadata that shows the video settings you used during capture.
Just Airdrop it.
It's simple... first off you can only upload 4k using the desktop version of Youtube at this time - not your iPhone. If you if upload to the Youtube app from your phone it will only do 1080p
Airdrop to your Mac - than upload to to Youtube. It will be in 4k