I know most will think this is a lot to spend on a drone although this could be used for both fun and professional requirements.
Xiaomi 4k Gearbest
The drone is solid, simple to use, quick and incredibly stable.
It records in 4K 2160p 30FPS , 1440p 60FPS & 1080p 30/50/60/100FPS.
I can't recommend this quad enough, I've flown it a few times, here's some footage from the weekend
Here's the Xiaomi Mi Drone Thread