Look for the TechCrunch review done at Disneyland for a pretty dam good example of OIS video.
Yes, do that (
http://techcrunch.com/2014/09/17/life-is-tough/ )and then see that cinematic video stabilization is the same on both phones....
Quote:
"The image quality is off the charts and the
(software driven) “Cinematic Stabilization” is amazing."
Come on, even the video demoing it is shot on an iPhone 6, not an iPhone 6 +
I also read that image stabilization while shooting movies is the same for both phones on multiple reviews, so techcrunch is obviously right on this and there is no difference in that point (as you can see by viewing the stabilized iPhone 6 video on the page I linked to)
Also, apple itself doesn't state a difference. Here
https://www.apple.com/iphone-6/cameras/ it differentiates between OIS for photos ("iPhone 6 plus") and cinematic video stabilization for videos (nothing like that), same goes for the "compare" site (
https://www.apple.com/iphone/compare/ ) -> cinematic video stabilization on both as opposed to not being on the iPhone 5s.
tl;dr get your facts straight, OIS just works for photos, cinematic video stabilization is the same on both phones