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.
specs:
Display 5.50-inch
Processor octa-core
Front Camera 8-megapixel
Resolution 720x1280 pixels
RAM 4GB
OS Android Oreo
Storage 32GB
Rear Camera 13-megapixel + 5-megapixel
Battery Capacity 3000mAh
sumber:
samsung