At first, I pinned the differnece down to the lower frame rates between 1080P60 and 4K30 but after taking a video on my Father's 6S Plus in 4K I have noticed that 4K video seems less smooth on my playback than how it runs on his. Could this be related to the fact I am running iOS 9.1? Granted Betas are never perfect; nor am I insinuating they should be, but I am just checking as to if I am not alone on the matter? So has anybody else experienced a less-than-expected 'smoothness' of the 4K playback in iOS 9.1 or the other versions supported? Thanks
-Stone
-Stone