This is such a reach lol. It doesn't even have a front-facing camera. Oh wait, maybe that means the new nexus/silver phones have super-duper hidden cameras right? Haha quit jumping to conclusions already!!
Looks like Nexus 6. The look is very similar to that of Nexus 4 & 5.
I could guess one thing. This is not a HTC device. I can't see any logos, hahaha