After using the OnePlus 2 for quite some time and going over the results of my testing, I can't say I'm thrilled with how things turned out for OnePlus's second smartphone.
the OnePlus 2's display was one of the first things I realized represented a regression from the OnePlus One. Right when I started using the phone it was clear that the color rendition was not in line with what I have seen on recent smartphones. Measurements of the display confirmed that it's far too blue, and not accurate beyond matching the primary colors of the sRGB gamut.
Performance is another area where the OnePlus 2 is extremely disappointing. Snapdragon 810's issues are well documented at this point, but the OnePlus 2 ends up being the worst implementation that I've seen, with the Cortex A57 cores never being used at all in circumstances like web browsing or when navigating the UI. It makes the phone feel like a Moto E, which is something I remarked on before even realizing exactly what was wrong with the CPU's behavior.
the phone gets pretty great battery life. The construction of the phone is also quite good, with very few visible seams due to the type of back cover attachment method OnePlus has used.
As for the camera, OnePlus has put some significant effort into improving their image processing, and there's no longer any issue with chroma noise across the frame even in broad daylight.
the OnePlus 2 simply has too many flaws that can't be overlooked. [...] You have to settle for not having Quick Charge 2.0 support, and you have to settle for not having NFC which locks you out of Android Pay. You have to settle for a very poorly calibrated display which pales in comparison to the original. Most disappointing of all is that you have to settle for poor performance, when moving through the UI, browsing the web, and doing anything remotely CPU intensive. You have to settle for a great number of concessions, many of which didn't exist on the OnePlus One, and none of which should exist at this price point
