Samsung reinvented itself last year and that gave the A-series a chance for a coup. It took the great new design from the S-phones and parred it down to a mid-range price.
The Samsung Galaxy A7 (2016) is essentially an A5 (2016) stretched to 5.5″ screen size. This sort of size has turned into somewhat of a sweetspot for a phablet – any bigger and the phone becomes unwieldy, any smaller and you lose the benefit of the big screen .
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