All in all, the Galaxy S7 is similar to last year’s devices in terms of the overall look and feel, but a few of the more subtle details are now a little clearer. One can also see that both devices will have the Always-on display feature. Moreover, several images show that the S7 and S7 edge have standard microUSB ports, rather than USB Type-C ports. We can also tell that the camera hump is no longer protruding.
The photos displaying the homescreen show Samsung Pay is prominently featured amongst the Google apps. Close-ups also show what appears to be more sensors, possibly to control the always-on display like the sensors on Motorola devices. Also, the ‘About’ screen from the 'Settings' menu shows that the devices run Android 6.0.1 Marshmallow. We can also make out the KNOX version, which appears to be 2.6. The Galaxy S6 launched with KNOX version 2.4, so it's possible that KNOX includes some new features and improvements.
All the Galaxy S7 and S7 edge photos are available in the source link below.
Samsung Galaxy S7 & S7 edge leaked
source: Android Headlines