What is Dual Pixel Camera technology?
First seen on DSLR’s, the dual pixel camera technology simply allows a single lens to do the job of a dual camera setup. While normal smartphone cameras use less than 5 percent of their pixels, dual pixel sensors use up to 100 percent of the pixels. Hence, autofocus speed and accuracy increase as well.
Aside from that, smartphones with dual pixel sensors use 25% of extra light making it outstanding for low-light photography. Such example is found when the Galaxy S7 is compared to its Galaxy S6 predecessor. That said, Samsung also announced that they will reveal a dual pixel sensor, the ISOCELL Fast 2L9, and the ISOCELL Slim 2X7.
Samsung’s ISOCELL Fast 2L9 is a 12MP sensor with 1.28µm pixels while the ISOCELL Slim 2X7 is a 24MP sensor with 0.9µm pixels. Both sensors will remove any camera hump even on thin smartphones. Samsung noted that their upcoming devices will feature their new technology. Nonetheless, you can view the image below which explains how dual pixel camera technology works.
Smartphones with Dual Pixel Sensor