The A7 sports a 5.5-inch Full HD 1920 x 1080 p and weighs 172 grams. The internal hardware includes a 1.6 GHz octa-core processor, 3 GB of RAM and support for LTE category 6 networks. Powering it all is a 3, 300 mAh with a Fast Charging battery.
The next in line is 155 gram Galaxy A5 that sports a 5.2-inch Full-HD Super AMOLED display, 2 GB of RAM, and a 2900 mAh battery that supports Fast Charging. It measures 144.8×71.0×7.3 mm and weighs 155 grams. The A5 as well as A7 feature Samsung Pay’s Magnetic Secure Transmission ( MST) , NFC payment systems and fingerprint scanner.
The smallest and the lightest Galaxy A3 ( pricing not available yet) sports a 4.7-inch display, LTE cat 4 network access, 1.5 GB of RAM, and a 1.5 GHz quad-core processor. All three run Android 5.1 Lollipop. They will come with 16 GB on board storage that is expandable up to 128 GB via micro SD card slot.