OnePlus has shared a brief interview with Vito L. - the Product Manager of the OnePlus 5 in which he shares some of the challenges in the development of the phone. He talks in detail of making the Reading mode and tuning the screen to be better for reading. The RGB mode is also a product of months-long effort and tweaks. The antenna has been a big challenge in the making of the OnePlus 5 as well. Vito L. shares how the team behind the OnePlus 5 made it better at withstanding water compared to its predecessors. You can read the entire piece through the link below. Source
Source: http://www.gsmarena.com/heres_some_insight_into_the_making_of_the_oneplus_5_-news-26538.php