Who among us hasn’t missed that all-important shot because autofocus didn’t work fast enough or wasn’t capable enough? This was a priority for engineers as they developed the Snapdragon 835. The goal: Build a truly effective autofocus and help shutterbugs capture even the fastest moving moments.

The result is the groundbreaking Dual Photodiode (2PD), an autofocus mechanism designed to use paired photodiodes on every pixel. While most modern camera phones use photodiode autofocus, Qualcomm Technologies supports granularity at the pixel level rather than at only having them at a fraction of the total diodes. This means that every single pixel is now capable of phase detection and image capture, making autofocus lightning fast and effective.

So, not only Samsung start to use sensors with DP design.

https://www.qualcomm.com/news/snapdragon/2017/02/01/snapdragon-835-brings-major-upgrades-your-phones-photos-and-video