Skip to main content
  1. Home
  2. Phones
  3. Android
  4. Mobile
  5. Photography
  6. News

Here's how Samsung's dual pixel image sensor raises the bar for mobile photography

Add as a preferred source on Google

Samsung introduced the Galaxy S7 and S7 Edge yesterday at Mobile World Congress with a tremendous amount of fanfare. While notable improvements such as the ability to withstand water, expandable storage, and a bigger battery are sure to excite, the camera is where the real innovation lies.

After showing its camera prowess on last year’s Galaxy S6, Samsung doubled down with the Galaxy S7 and S7 Edge by improving it even more than we had imagined.

Recommended Videos

Both phones feature a dual pixel image sensor, and while we have already seen this technology in DSLRs, we have never seen it in a smartphone.

In a nutshell, dual pixel technology speeds up the autofocus by using 100 percent of the pixels, whereas traditional smartphone cameras use less than 5 percent. It almost seems absurd to have that kind of an improvement, but Samsung’s dual pixel sensor splits every single pixel into two photodiodes for phase and contrast.

So when capturing a photo on the Galaxy S7 or S7 Edge, the light from the lens is sent to two image sensors independently to adjust the focus, which is very similar to how the human eye works.

Samsung_Galaxy_S7_Dual_Pixel_Explained
Image used with permission by copyright holder

No pun intended here, but the dual pixel image sensor really outshines in low light situations. The Galaxy S6 already had fantastic low light performance, but the Galaxy S7 kicks it up more than a few notches. It captures 95 percent more light than the Galaxy S6 thanks to a 56 percent upgrade in the size of the pixels (1.44 microns) and an aperture of f/1.7.

Combine the dual pixel image sensor with the additional light, and the result is a smartphone camera that can autofocus super fast in any lighting environment.

Take a look at the two videos below to get a good idea of how much more improved the Galaxy S7 is over the Galaxy S6.

Galaxy S6 vs Galaxy S7: Camera Comparison ①
Galaxy S6 vs Galaxy S7: Camera Comparison ②

We’re looking forward to getting more hands on time with both phones to find out if they live up to the hype. Stay tuned.

Robert Nazarian
Robert Nazarian became a technology enthusiast when his parents bought him a Radio Shack TRS-80 Color. Now his biggest…
Google Health just made Fitbit Air a better fit for Apple Health users
Google Health bridges Apple Health syncing, medical sharing, and fitness tracking fixes.
Body Part, Knee, Person

I've found it a little absurd that health apps from different companies and service providers refuse to communicate with each other, even when you're the one who owns the data. Google just took one small yet important step toward fixing it. 

Google Health version 5.05 started rolling out today. And compared to the last several releases, this one's fairly light, especially since it follows four crucial updates packed into June and July. 

Read more
Google can’t catch a break as the Pixel 11 Pro leaks once again
Electronics, Mobile Phone, Phone

Google's Made by Google 2026 event is just around the corner, but at this point, it feels like the company has very little left to surprise us with.

The latest leak brings what appear to be official marketing renders of the Pixel 11 Pro and Pixel 11 Pro XL, offering perhaps the clearest look yet at Google's upcoming flagship phones. Shared by well-known leaker Evan Blass, the images don't just show off the hardware — they also hint at camera upgrades, AI features, and the next-generation Tensor chip powering everything under the hood. While none of the images reveal anything dramatically unexpected, they do suggest Google is paying attention to one design complaint Pixel fans have had for years.

Read more
Samsung’s risky move with the Galaxy Z Fold 8 is paying off threefold
Samsung’s passport-shaped Fold is leaving last year’s bestseller in the dust
Samsung Galaxy Z Fold 8 Inside Screen View

For a brand that's stuck to safer updates for most of its annual updates, Samsung’s odd new passport-shaped foldable was a surprisingly risky move--and it seems like that gamble is paying off. Early demand suggests the company may have underestimated just how many buyers wanted something different.

According to a BusinessPost report, the Galaxy Z Fold 8 is selling at roughly three times the pace of the Galaxy Z Fold 7 during the comparable early sales period. Demand has reportedly caught Samsung off guard, leaving the company working to increase production and get more units into stores.

Read more