Both the Mavic & Phantom 4 provide 4K screen resolution which is awesome, just remember unless you have a 4K TV to view them you won't get the full quality of the videos.
Also PC computers have a hard time processing 4K data and videos want to keep buffering during playback ( he had to convert the 4K to MP4 HD using Wondershare Video converter software to achieve smooth video) friend of mine has the Phantom 4 and actually bought a MAC Pro laptop to view and edit his videos. The MAC has 4K processors and is a great graphic computer and the 4K videos run smoothly
Mavic is awesome with new avoidance software and the range is phenomenal, now if you could get it to run to McDonalds life would be complete !!