My pointers for people doing videos that makes it better for the viewer, regardless of resolution:
Film in landscape mode only
Don't constantly jerk the camera back and forth
Don't use low rent effects, filters, etc
Stabilize your camera if it doesn't have good stabilization software built in
Don't be afraid to tweak your phone camera settings, you can always easily go back to default and either way changing settings won't hurt anything, there are so many useful settings on modern phone cameras like low lighting, bright lighting, action, etc
If you need to have sound or narration, do this separately, there's plenty of free software for it
When using music, it should fit the scene(s) and not be overbearing
I have seen wonderful YoutTube videos done with phone cameras and absolutely horrible YouTube videos done with other cameras, especially GoPro.
