Samsung galaxy j7 prime. its a very good phone right now I am using this phone and I loved the battery life and I use continiously 1 day so battery level will be remain still 40% to 50% its 3300mah non removable battery. it has 3 GB RAM this phone has 16 GB of internal storage and it can be expandable up to 250 GB with the help on micro sd card and its look very excellent when we are using. samsung galaxy j7 prime runs android 6.0 version.