Samsung galaxy on7 is a bad device. Samsung has released another device with such low end specifications and it does not perform well.
Samsung custom UI which is TouchWiz UI just ruins the beauty of Android experience. The UI becomes laggy after a few months of usage.
Gaming performance was below average. Heavy games were not smooth and lags a lot which makes them unplayable. Device used to heat up a lot after 5 minutes of gameplay.
Camera performance was not good. Photos were not clear and sharp and they were mostly blur.