The Galaxy J5(2016) is the centerpiece of the companys mid-range portfolio for the year. With its predecessor becoming a huge hit in developing markets, the company really needs the 2016 model to come out good and help keep Chinese makers at bay.
A quick glance at the specs sheet shows that Samsung followed the "If its not broken, dont fix it" saying to the letter. With the internals mostly unchanged, Samsung chose to focus on the design instead, hoping that the metal body will help its offering stand out.
You also get a bigger battery and the screen grew by .2", but thats mostly it with other changes being so minor that they mostly fall in the adjustments category. Heres the full scoop.