Samsung Galaxy J7 full specification

Operating System Android Lollipop v5.1
Processor                 Octa-core, 1.5 GHz
Chip-set                 Exynos 7580
Graphics (GPU) Adreno 405
Network Scope 2G, 3G

RAM               1.5 GB
ROM               16 GB
Memory               MicroSD, up to 128 GB

Release Date   June 2015
Price:                       280 $ ( 21,900 BDT )          

Battery      Lithium-ion 3000 mAh (removable)
Talk-time:         up to 18 hours
3G-usage time: up to 9 hours
      Samsung Galaxy J7

Dimension  152.4 x 78.6 x 7.5 millimeter, 171 grams
Display Type Super AMOLED Touchscreen

Camera Factors (Back) 4128 x 3096 pixels, autofocus, LED flash, auto face recognition, f/1.9 aperture, panorama mode.
Camera Resolution (Back) 13 Megapixel
Camera Resolution (Front) 5 Megapixel, CMOS, LED Flash
Video                                 Full HD (1080p)

Colors Available White, Black, Gold
Display Size & Resolution 5.5 inches, HD 720 x 1200 pixels

Sensors Accelerometer, proximity, hall sensor
SIM Card Type Dual SIM (Micro-SIM, dual stand-by)
USB MicroUSB v2.0
Wireless LAN Yes, Wi-Fi direct, hotspot
Special Features - Smart manager, ultra power-saving mode
Other Features - Bluetooth, GPS, A-GPS, MP3, MP4, Radio, GPRS, Edge, Multitouch, Loudspeaker