Samsung galaxy s7 is a very powerfull device.this smart phone is having 5.1-inch, quad-HD display.it is having powerfull 3, 000mAh battery . and it has a very clear camera which is too very powerfull and is 12MP. its a very fast phone and wirless charging.Its also supports micro SD card . it is also having android 6.0.1 Marshmallow version. this devuce incldes 4gb ram which is very fast its in a very effordable .Almost every buddy is having it I wish I could have it too and I like this device very much