The new Samsung Galaxy S7 and S7 Edge add new features and improved camera performance as highlighted in PC Magazine review below:,2817,2499438,00.asp

BARCELONA—The Samsung Galaxy S7 and S7 Edge are the biggest new flagship phones announced at Mobile World Congress, but you might not realize it at first glance. They look an awful lot like last year’s Galaxy S6 $579.99 at T-Mobile and S6 Edge $779.99 at T-Mobile, with the same metal frames, glass backs, and overall design language. But closer inspection reveals some key differences. We got to spend some time with both new phones ahead of the show.

Design – The 5.1-inch Galaxy S7 has the same size screen as last year’s model, while the 5.5-inch S7 Edge has been bumped up a notch (the S6 Edge measures 5.1 inches). Both new phones feature contoured backs to better conform to your grip, and make one-handed use a bit easier.

Always-On Display — The Quad HD displays look gorgeous, with bright, super-saturated colors—no surprise here, as Samsung’s flagships always include top-notch panels. But this time around the display is always on, showing you the time, date, calendar, and notifications. You can even choose your own personalized design. The display only lights up select pixels, and the phone goes to sleep in your pocket, so battery drain shouldn’t be too big of an issue.

A Focus on Camera Performance — This might surprise you. Samsung has redesigned the rear camera for both the S7 and S7 Edge, shaving the resolution down to 12 megapixels (from 16 megapixels on the S6 and S6 Edge). This increases the photosite size to 1.4 microns, meaning slightly larger pixels, which should provide an improvement in low-light image and video quality. And the camera now features f/1.7 aperture, which captures about 25 percent more light than the f/1.9 lens used previously.