So I've only tested this with a couple films from my library on a 7+, iPad Pro (2nd Gen) and X. It looks like iTunes is feeding a different encode depending on what device you're downloading from.
Oblivion
iP7+ / iPP : 5.20 GB
iPhone X : 7.22 GB
Logan
iP7+ / iPP : 5.83 GB
iPhone X : 9.19 GB
Spider-Man: Homecoming
iP7+ / iPP : 5.55 GB
iPhone X : 7.81 GB
X-Men: Apocalypse
iP7+ : 6.00 GB
iPP : 6.02 GB (not sure why there's a small difference here with the iPhone)
iPhone X : 8.34 GB
I can't think of what else would explain the size discrepancy other than an upgrade from FHD to UHD+HDR. When viewing the films on the X, HDR seems to be active, but I don't have enough first-hand experience with the tech to know for sure. I've compared both the streams and local copies for all these films (on the X) and could not discern any visible differences.
Any publication report on this yet? For the Apple TV 4K, HDR titles are only available for streaming and downloads are restricted to 1080p. But I don't remember seeing any hard confirmation 4K/HDR movies can be downloaded locally to an Apple device. Can anybody else confirm, preferably with their own data sets as well?
Oblivion
iP7+ / iPP : 5.20 GB
iPhone X : 7.22 GB
Logan
iP7+ / iPP : 5.83 GB
iPhone X : 9.19 GB
Spider-Man: Homecoming
iP7+ / iPP : 5.55 GB
iPhone X : 7.81 GB
X-Men: Apocalypse
iP7+ : 6.00 GB
iPP : 6.02 GB (not sure why there's a small difference here with the iPhone)
iPhone X : 8.34 GB
I can't think of what else would explain the size discrepancy other than an upgrade from FHD to UHD+HDR. When viewing the films on the X, HDR seems to be active, but I don't have enough first-hand experience with the tech to know for sure. I've compared both the streams and local copies for all these films (on the X) and could not discern any visible differences.
Any publication report on this yet? For the Apple TV 4K, HDR titles are only available for streaming and downloads are restricted to 1080p. But I don't remember seeing any hard confirmation 4K/HDR movies can be downloaded locally to an Apple device. Can anybody else confirm, preferably with their own data sets as well?