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Samsung Galaxy J7
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Samsung Galaxy A3

Samsung Galaxy J7
Network
Technology GSM / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - all versions GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100 - A300F, A300FU, A300G, A300HQ, A300M, A300YZ HSDPA 850 / 900 / 1900 / 2100
4G Network 1, 3, 5, 7, 8, 20 - A300F, A300FU 1, 3, 5, 7, 8, 20, 40
  1, 3, 5, 7, 8, 20, 40 - A300G
  1, 2, 4, 5, 7, 17 - A300M
  3, 7, 8, 28 - A300YZ
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 21.1/5.76 Mbps
HSPA, LTE Cat4 150/50 Mbps
Launch
Announced 2014, October. Released 2014, December 2015, June 19. Released 2015, July 16
Status Discontinued Discontinued
Body
Dimensions 130.1 x 65.5 x 6.9 mm (5.12 x 2.58 x 0.27 in) 152.2 x 78.7 x 7.5 mm (5.99 x 3.10 x 0.30 in)
3D size compare
Weight 110.3 g (3.88 oz) 171 g (6.03 oz)
Build Glass front (Gorilla Glass 4), plastic back, aluminum frame Glass front, plastic back, plastic frame
SIM Nano-SIM Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Display
Type Super AMOLED Super AMOLED
Size 4.5 inches, 55.8 cm2 (~65.5% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~69.6% screen-to-body ratio)
Resolution 540 x 960 pixels, 16:9 ratio (~245 ppi density) 720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Protection Corning Gorilla Glass 4
Platform
OS Android 4.4.4 (KitKat), upgradable to 6.0.1 (Marshmallow) Android 5.1 (Lollipop), upgradable to 7.1.1 (Nougat)
Chipset Qualcomm MSM8916 Snapdragon 410 (28 nm) Qualcomm MSM8939 Snapdragon 615 (28 nm)
Exynos 7580 Octa (28 nm)
CPU Quad-core 1.2 GHz Cortex-A53 Octa-core (4x1.4 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Octa-core 1.5 GHz Cortex-A53
GPU Adreno 306 Adreno 405
Mali-T720MP2
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 16GB 1GB RAM, 16GB 1.5GB RAM 16GB 1.5GB RAM
 eMMC 4.5 eMMC 5.0 or eMMC 4.5
Main Camera
Modules 8 MP, f/2.4, 31mm (standard), AF 13 MP, f/1.9, 28mm (wide), AF
Features LED flash, panorama LED flash, panorama
Video 1080p@30fps 1080p@30fps
Selfie Camera
Modules 5 MP, f/2.2, 23mm (wide) 5 MP, f/2.2, 23mm (wide)
Features LED flash
Video
ADVERTISEMENT
Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
Comms
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth 4.0, A2DP, EDR, LE 4.1, A2DP
Positioning GPS, GLONASS, BDS GPS, GLONASS
NFC Yes (LTE model only) Yes (Snapdragon model only)
Infrared port No No
Radio FM radio, recording FM radio, RDS, recording
USB microUSB 2.0 microUSB 2.0
Features
Sensors Accelerometer, proximity, compass Accelerometer, proximity
 ANT+ ANT+
Battery
Type Li-Ion 1900 mAh, non-removable Li-Ion 3000 mAh, removable
Talk time Up to 12 h (3G) Up to 18 h (3G)
Music play Up to 60 h Up to 76 h
Misc
Colors Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light Blue, Champagne Gold White, Black, Gold
SAR 1.25 W/kg (head)     1.36 W/kg (body)    
SAR EU 0.24 W/kg (head)     0.30 W/kg (body)     0.50 W/kg (head)     0.37 W/kg (body)    
Models SM-A300F, SM-A300FU, SM-A300G, SM-A300HQ, SM-A300M, SM-A300XU, SM-A300XZ, SM-A300Y, SM-A300YZ, SM-A300H SM-J700F, SM-J700H, SM-J700M, SM-J700T, J7, SM-J700T1, SM-J700K, SM-J700P, SM-j7008
Price About 190 EUR About 200 EUR
Tests
Performance Basemark X: 1895 Basemark OS II 2.0: 709
Basemark X: 3922
Display Contrast ratio: Infinite (nominal), 3.879 (sunlight)
Camera Compare PHOTO / Compare VIDEO
Loudspeaker Voice 65dB / Noise 66dB / Ring 76dB Voice 63dB / Noise 62dB / Ring 66dB
Audio quality Noise -96.1dB / Crosstalk -73.2dB
Battery (old) Endurance rating 65h Endurance rating 91h

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