We received 32GB instead of 16GB, can't complain!

Samsung Galaxy J7 Prime Factory Unlocked Phone Dual Sim - 16GB (Pure Gold)

I cross checked with my mobile carrier they used it in another phone and 4G was working well in that handset

While HSPA+ does offer some of the same benefits from a user perspective, experts agree that the more advanced LTE technology clearly qualifies as 4G while HSPA+ does not