We don't, but can extrapolate:

[1] Reviewer comparison: https://news.ycombinator.com/item?id=45209164

[2] Specs: iPhone Air: 5.64mm, 165g vs. Samsung Edge: 5.8mm, 163g, 200MP camera, stereo, larger battery

https://www.facebook.com/theapplehubofficial/posts/galaxy-s2...

[3] Demand by young man: https://news.ycombinator.com/item?id=44678489