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Samsung Galaxy A8 vs Samsung Galaxy J7 vs Samsung Galaxy Alpha

BASIC INFO
Model No Galaxy A8 SM-J7008
J7008 		Galaxy Alpha
Status Available. Available. Released 2015, June Available.
Release Date 2015, August 2015, June 2014, August
Dimension 158 x 76.8 x 5.9 mm (6.22 x 3.02 x 0.23 in) 152.2 x 79.1 x 7.9 mm (5.99 x 3.11 x 0.31 in) 132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in)
Weight 151 g 171 g (6.03 oz) 115 g (4.06 oz)
Colors Pearl White, Midnight Black, Champagne Gold White, Black, Gold Charcoal Black, Sleek Silver, Dazzling White, Frosted Gold, Scuba Blue
Body Metrial - Plastic -
W & D Proof - - -
SIM Type Nano-SIM Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) Nano-SIM
Technology GSM / HSPA / LTE GSM / HSPA / LTE GSM/HSPA.LTE
OS Android OS, v5.1.1 (Lollipop), upgradable to v6.0 (Marshmallow) Android OS, v5.1 (Lollipop) Android OS, v4.4.4 (KitKat)
PROSESSING
Processor Quad-core 1.8 GHz Cortex-A53 & quad-core 1.3 GHz Cortex-A53 Quad-core 1.4 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53
Octa-core 1.5 GHz 		Octa-core (4x1.8 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7)
Chipset Qualcomm MSM8939 Snapdragon 615 Qualcomm MSM8939 Snapdragon 615
Exynos 7580 Octa 		Exynos 5430 Octa
GPU Adreno 405 Adreno 405
Mali-T720MP2 		Mali-T628 MP6
MEMORY
RAM 2GB 1.5GB 2 GB
Storage 16GB 16GB 32 GB
Card Slot Up to 256 GB Up to 64 GB microSD, up to 256 GB
DISPLAY
Size 5.7 inches 5.5 inches 4.7 inches
Type Super Amoled capacitive touchscreen, 16M colors TFT capacitive touchscreen, 16M colors AMOLED capacitive touchscreen, 16M colors
Resolation 1080 x 1920 pixels 720 x 1280 pixels 720 x 1280 pixels,
PPI 386 ppi pixel density 267 ppi pixel density 312 ppi pixel density
Multi touch Yes Yes Yes
Protection Corning Gorilla Glass 4 Corning Gorilla Glass Corning Gorilla Glass 4
CAMERA
Primary 16 MP 13 MP, 4128 x 3096 pixels 12 MP, f/2.2, 31mm, autofocus, LED flash, check quality
Video 1080p@30fps, check quality Yes, 720p@30fps 2160p@30fps, 1080p@60fps, 720p@120fps, check quality
Flash - LED flash Yes
Features Geo-tagging, touch focus, face detection, panorama, HDR Geo-tagging, touch focus, face detection, panorama Geo-tagging, touch focus, face/smile detection, panorama, HDR
Selfie Yes 5 MP Yes 5 MP 2.1 MP
BATTERY
Battery Li-Ion Li-Ion Li-Ion battery
Capacity 3050 mAh 3000 mAh 1860 mAh
Removable Non-removable Yes Removable
StandBy - - Up to 350 h (3G)
Talk Time Up to 17 h (3G) Up to 18 h (3G) Up to 11 h (3G)
Music Play Up to 51 h Up to 76 h Up to 37 h
Browsing HTML5 Yes HTML5
Video Playback - - -
F Charging - - -
W Charging - - -
NETWORK
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - J700F, J700H
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - J700M 		HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - J700F
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 17(700), 28(700) - J700M 		LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) - G850F
Speed HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps HSPA 21.1/5.76 Mbps
HSPA, LTE Cat4 150/50 Mbps 		HSPA 42.2/5.76 Mbps, LTE-A Cat6 300/50 Mbps
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
BlueTooth v4.1, A2DP, EDR, LE v4.1, A2DP v4.0, A2DP, EDR, LE
USB microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS/ BDS (market dependant) Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS
NFC Yes Yes (Snapdragon model only) Yes
Audio jeck Yes, 3.5mm Jack Yes, 3.5mm 3.5 mm
OTHERS
Sensors Fingerprint, accelerometer, proximity, compass Accelerometer, proximity Fingerprint, accelerometer, gyro, proximity, compass, heart rate
Radio FM radio, RDS, recording FM radio, RDS, recording No
SARUS - 1.25 W/kg (head), 1.36 W/kg (body) 1.18 W/kg (head) 0.75 W/kg (body)
SAREU - 0.50 W/kg (head), 0.37 W/kg (body) 0.37 W/kg (head) 0.51 W/kg (body)
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