It comes to something when a relatively new handset maker bills its new smartphone as a '2016 Flagship Killer'. That's an aggressive claim: OnePlus -- founded in Shenzhen, China, in December 2013 -- is implying that a reasonable outlay will buy you a handset that can knock the top vendors' flagship phones into a cocked hat.
OnePlus 2 review at ZDNet
OnePlus 2 review at ZDNet