New videos about the operating system have appeared on our YouTube channel Android. We present to your attention a video in which we introduce the updated line of dust and waterproof (IP68) smartphones of the Galaxy A line of 2017 – A7, A5 and A3, equipped with a 5.7-inch Full-HD display, 5.2-inch Full HD display and 4.7-inch HD display, respectively. Older models (A7 and A5) are equipped with two 16 MP cameras (A3 – 13 MP and 8 MP), 32 GB of internal memory and 3 GB of RAM (in A3 – 2 GB of RAM and 16 GB of internal), support for 4G / LTE networks and two SIM cards, fingerprint scanner, and also running the operating system Android 6.0 Marshmallow: