[alexbell]

I think lots of video streaming is adaptive to bandwidth, and if you have an LTE connection that can handle HD video you'll get it. Still doesn't account for why the trend is supposedly 5s specific. Perhaps because the 5s can handle more LTE bands?

[ChuckMcM]

That is a good point on the LTE bands, I had not considered that it just may be that now this is more often achievable at an acceptable quality rate.