Nexus 6 SUPCASE (Unicorn Beetle series) Premium Hybrid Bumper Case Cover for Motorola Nexus 6 (Frost Clear/Black).
breath
Long name, silly series name, attractive case. It adds just enough grip that it stays in your hand comfortably, and it's aesthetically attractive.
I use this case. Rubber edges that give great grip and protect the screen when you put the phone face down. Makes using the phone with one hand much more comfortable and secure. I can't use my phone without it now.
The battery pack is a good idea, do you know if there is any real difference (other than charge capacity, obviously) between the expensive batteries and the dirt cheap ones like this?
As for the headset, I almost never have to take calls so I don't think that will be an issue.
And this is the case I have.
I have had there other cases and enjoyed them.
http://www.amazon.com/SUPCASE-Google-Unicorn-Premium-Motorola/dp/B00OHFGUDU/ref=sr_1_1?s=wireless&ie=UTF8&qid=1441209255&sr=1-1&keywords=supcase+nexus+6
Its slim but seam to do well for my HTC One M8.
https://www.amazon.com/SUPCASE-Google-Unicorn-Premium-Motorola/dp/B00OHFGUDU?th=1&psc=1
Supcase in black/frost plus a tempered glass screen protector. Many drops, no issues. Last drop had it rolling down half a flight of concrete stairs. Minimal bulk.
Mine is pretty cheap and works wonders. Haven't had any issues what so ever in over a year. The only downside is that it isn't the most comfortable when pressed to your ear.
Am I the only one that wants this case? http://www.amazon.com/gp/aw/d/B00OHFGUDU/ref=mp_s_a_1_1?qid=1415496317&sr=8-1&pi=SY200_QL40