You can shoot stars using your s7's amazing camera!Go to pro mode and set the shutter to 10 seconds, set the iso to 200 and the focus to auto then set the timer for two seconds then quickly place your phone on stable suface where there is no light ar...
I charged my S7 edge fully then started it up so after I used it for nearly 2 minutes the battery dropped 3% of the juice !! that is not ok when it was at marshmallow, 3% can last at least 15 minutes