Sony Xperia Z3+ has a 20.7MP Camera built in that records 4K UHD 2160p Videos with up to 30fps. 440MB for 1 Minute with the h264 Codec.
The H265 is not working to upload raw on youtube, would be 250MB only though. So here is a direct download link:
Low Light: https://mega.nz/#!NJVAhSSK
Sony Xperia Z3 Plus auf Amazon kaufen: https://goo.gl/jRDFdo