Revealed in India, the Galaxy J2 runs Android 5.1 Lollipop, and features an Ultra Data Saving mode powered by Opera Max (as you may know, Opera Max is also available as a separate app that allows Android users to save mobile data).
According to Opera, its data-optimization technology can deliver up to 50% savings in mobile data and free up to 11% of RAM, by reducing consumption on data-hungry applications like YouTube, …
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