Samsung Galaxy j7 android phone is awesome to use, it some medium cost price phone to get very good features its camera features is so good sharp camera capturing back flash get when is it in flash the photo quality like hd photo its front camera is so good, & front camera also in flash to capture better selfie If iam telling about speaker its ultra sound to online watch movie its extremly good this phone get inbuilt knox its a like antivirus to secure junk file or many more cache file sometimes many phone full spaces to junk file but their are to secure to junk file