Samsung Galaxy A3 vs Samsung Galaxy Star 2 vs Samsung Galaxy J2

BASIC INFO
Model No A300F with 1 GB RAM; A300FU with 1.5 GB RAM Galaxy Star 2 Galaxy J2
Status Available. Released 2014, December Discontinued Discontinued
Release Date 2014, October 2014, August 2015, September
Dimension 130.1 x 65.5 x 6.9 mm (5.12 x 2.58 x 0.27 in) 109.8 x 59.9 x 11.8 mm (4.32 x 2.36 x 0.46 in) 136.5 x 69 x 8.4 mm (5.37 x 2.72 x 0.33 in)
Weight 110.3 g (3.88 oz) 107.6 g (3.81 oz) 129 g (4.55 oz)
Colors Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light Blue, Champagne Gold Iris Charcoal, White White, Black, Gold
Body Metrial - - -
W & D Proof - - -
SIM Type Nano-SIM Dual SIM (Mini-SIM, dual stand-by) Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Technology GSM / HSPA / LTE GSM GSM / HSPA / LTE
OS Android OS, v 4.4.2 (KitKat) Android OS, v4.4.2 (KitKat) Android OS, v5.1 (Lollipop)
PROSESSING
Processor Quad-core 1.2 GHz Cortex-A53 1.0 GHz Quad-core 1.3 GHz Cortex-A7
Chipset Qualcomm MSM8916 Snapdragon 410 - Exynos 3475 Quad
GPU Adreno 306 - Mali-T720
MEMORY
RAM 1GB 512MB 1GB
Storage 16GB 4 GB 8GB
Card Slot up to 64 GB (dedicated slot) microSD, up to 32 GB Up to 64 GB
DISPLAY
Size 4.5 inches 3.5 inches 4.7 inches
Type Super AMOLED capacitive touchscreen, 16M colors TFT capacitive touchscreen, 256K colors Super AMOLED capacitive touchscreen, 16M colors
Resolation 540 x 960 pixels 320 x 480 pixels 540 x 960 pixels
PPI 245 ppi pixel density 165 ppi pixel density 234 ppi pixel density
Multi touch Yes Yes Yes
Protection Corning Gorilla Glass 4 - -
CAMERA
Primary 8 MP, f/2.4, 31mm, autofocus 2 MP 5MP
Video 1080p@30fps Yes Yes, 1080p@30fps
Flash Led flash - LED flash
Features Geo-tagging, touch focus, face detection, panorama - Geo-tagging, touch focus, face detection
Selfie 5 MP, f/2.2, 23mm No Yes, 2MP
BATTERY
Battery Li-Ion Li-Ion battery Li-Ion battery
Capacity 1900 mAh 1300 mAh 2000 mAh
Removable Non-removable Removable Yes
StandBy - - -
Talk Time Up to 12 h (3G) - Up to 11 h (3G)
Music Play Up to 60 h - Up to 41 h
Browsing - HTML5 -
Video Playback - - -
F Charging - - -
W Charging - - -
NETWORK
2G Network GSM 850 / 900 / 1800 / 1900 - all versions GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 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 - J200G, J200GU, J200F, J200Y
HSDPA 850 / 900 / 2100 - J200H
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - A300F, A300FU
LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) - A300G
LTE band 1(2100), 2(1900), 4(1700/2100), 5(850), 7(2600), 17(700) - A300M
LTE band 3(1
- LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - J200F
LTE band 1(2100), 3(1800), 5(850), 8(900), 20(800), 40(2300) - J200G
LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900) - J200GU
LTE band 1(2100), 3(1800), 5(850), 7(2600),
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps - HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
BlueTooth v4.0, A2DP, EDR, LE v4.0, A2DP v4.1, A2DP
USB MicroUSB v2.0 microUSB v2.0 microUSB v2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS No Yes, with A-GPS, GLONASS
NFC Yes - Yes (market dependent)
Audio jeck Yes, 3.5mm 3.5mm Jack Yes, 3.5 mm
OTHERS
Sensors Accelerometer, proximity, compass Accelerometer Accelerometer, proximity
Radio FM radio FM radio FM radio, RDS, recording
SARUS - - 1.18 W/kg (head), 1.27 W/kg (body)
SAREU 0.24 W/kg (head) 0.30 W/kg (body) - 0.57 W/kg (head), 0.45 W/kg (body)
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