The Samsung Galaxy J7 Duo is powered by a 3000mAh. It measures 153.50 x 77.20 x 8.20 (height x width x thickness) and weighs 174.00 grams. The Samsung Galaxy J7 Duo is a Dual-SIM smartphone. Connectivity options include Wi-Fi, GPS, Bluetooth, and FM. Sensors on the phone include the Fingerprint sensor, Proximity sensor, and Accelerometer.