Well, here's a very unscientific but still demonstrative test of Samsung Galaxy S7 edge's Dual Pixels autofocus system. This fellow from Thailand put the S7 against the Canon 70D, a DSLR with its own Dual Pixel AF system (which reviews show is faster and more accurate than traditional Phase Detection AF).
Here's a video of the two cameras, S7 edge and 70D, keeping track of fast moving objects. The difference in speed is tangible.
And here's the same test in the dark. Things are moving too fast to really tell, but the Samsung Galaxy S7 edge seems to have an edge in image quality as well as focus speed.
You can read how Dual Pixel autofocus works and see our own test of the S7.
Thanks to THE-DEVIL (oh my!) for sending this in!