If you are thinking to buy Samsung j7 prime, then just look at my own experience which I am sharing for all of you:
The Samsung Galaxy J7 Prime mobile features a 5.5 Inch display and runs on Android v6.0.1(Marshmallow) operating system. The device is powered by a Octa core, 1.6 GHz, Cortex A53 processor paired with 3 GB of RAM. As far as the battery is concerned it has 3300 mAh. Over that, as far as the rear camera is concerned this mobile has a 13 MP, Auto focus sensor and the front snapper is powered by a 8 MP sensor .
At the front, Galaxy J7 Prime has a physical Home button that also integrates a fingerprint sensor. It’s flanked by two capacitive buttons mapped to Recent and Back functions. Above the display lie an earpiece, an 8MP selfie shooter and the usual array of sensors.
The non-removable back panel of the Galaxy J7 Prime has a 13MP rear camera and an LED flash, along the Samsung branding below it. The rear camera is non-protruding, so it won’t get scratched when the device is laid flat on a surface.
Moving on to the display, Samsung Galaxy J7 comes with a 5.5-inch Full HD TFT display of 1080x1920 pixel resolution and around 401ppi pixel density. The side bezels are quite thin, just like on the A7.