Difficult to buy.
Android OS offers. OnePlus 2 has app-by-app permission settings. While it's not a new concept, the OnePlus 2 does it makes the process feel more controllable than stock Android OS. There's also Shelf - a feature that lists your most frequent contacts and apps, but it is essentially another version of Google Now. Premium-grade qualities aside, the OnePlus 2 does carry the traits that make it a thorough Chinese-made smartphone with features - even bad ones - borrowed from its harshest critics. There's dualSIM with LTE connectivity on both slots, but no microSD card slot. It may be one of the first commercially available smartphone with USB Type-C port, but it doesn't have USB 3.1 transfer speeds. The biggest peeve is exactly the same one as its predecessor – you can only purchase the device with an invite bestowed upon you by OnePlus themselves.
Despite its shortcomings, the OnePlus 2 is certainly a grade above its mid-tier peers. To call it a flagship killer of 2016 is hyperbole, since it's only keeping up with the competition from this year's flagships. Nonetheless, the OnePlus 2 is certainly still an amazing bang for the buck, if you can get an invite to buy one that is.