This update to Samsung's flagship curved-screen phone has a larger battery, memory card slot, upgraded 12-megapixel camera, always-on display, and curved-edge glass on the front and back.

A family of Android smartphones from Samsung ... from 2,550 to 3,000 mAh (3,600 in Edge model). New camera sensor and faster auto-focus. See Galaxy S7 Edge. Slightly thinner, more refined case.

However, if you plan to buy the Galaxy S7 and Galaxy S7 edge, then you definitely should pay attention to the way Samsung handles memory expansion before you commit to any of the phones.