One is very very good.smoothh.BUT a few niggles
1.SAMSUNG MUST SEED A UPDATE AND ENABLE HDR FOR CAMERA.ABSENCE OF HDR IS SHOCKING.
2.where is the samsung touchwiz music player? add this ASAP IN A UPDATE.
3.J5 HAS AMOLED DISPLAY.SO MAKE THE TOUCHWIZ UI BLACK.or give is an option whether we want a black or a white material ui.JUST ADD A BLACK UI MODE.THATS IT.it will increase battery life and display longevity