I have the S7 and my gf tried out the 10 before going with the S7 edge. She's a long time M8 user and loved HTC. That being said, she's prefers the design of the edge. While she was trying out the 10, I noticed a couple of things. Battery life is not much better on the 10 than the S7. And the edge is head and shoulders above both. My S7 battery life is a little longer than the 10. I end up with about 20% left at the end of 13-14hrs with about 2-3hrs of screen time. The HTC 10 would be a little less. That was consistent with me. The S7 is smaller and fit in my one hand much more comfortably. The 10 is a bit bigger and closer in size to the edge than the regular S7. With that in mind, my gf preferred the S7e screen. She preferred the speakers on her m8. The 10 speakers while better than Sammy, doesn't come close to the sound on the m8. She was very disappointed with that. As she said, there was nothing about the 10 that jumped out at her that she preferred over the edge. It's been a month now for her and a couple of months for me with Sammy devices and I'm glad to report no slowdowns, no lag, quick updates, and still not regretting getting the S7.