There is little to no need for an upgrade for those who already own last year's Galaxy A3 (2016) . With its similar build quality, this year's model does have a few advantages, though. First of all the Galaxy A3 (2017) is now IP68 dust- and waterproof.
high-quality workmanship; water and dustproof (IP68; USB Type-C port with USB-OTG; LTE; NFC; 802.11 ac Wi-Fi; very bright well-adjusted AMOLED display; decent camera; decent performance; stays cool; good speaker; very good battery life
smooth and slick back side, only LTE Cat; 4, no Mobile High-Definition Link (MHL, no dual SIM, no optical image stabilization, PWM-flicker