Phone Comparison - Samsung Galaxy Alpha vs Samsung Galaxy A3 vs Xiaomi Redmi 2

general General Info

Manufacturer Samsung Samsung Xiaomi
Announced August 2014 October 2014 January 2015
Status Available - September 2014 Available - November 2014 Available - January 2015
Price - Rs. 14,265 ($209.78) [Similarly Priced] Rs. 5,999 ($88.22) [Similarly Priced]
Colors Black, white, gold, silver, blue Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B Black, White, Yellow, Pink, Green
Form Factor Candybar Candybar Candybar
Dimension 132.4 x 65.5 x 6.7 mm
(5.21 x 2.58 x 0.26 in)
130.1 x 65.5 x 6.9 mm
( 5.12 x 2.58 x 0.27 in)
134 x 67.2 x 9.4 mm
(5.28 x 2.65 x 0.37 in)
Weight 115 g (4.06 oz) 110.3 g (3.88.0.11 oz) 133 g (4.69 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 HSDPA 850 / 1900 / 2100
TD-SCDMA 1900 / 2100
4G Network LTE LTE LTE 1800 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41)
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.4.4 (KitKat) Android OS, v4.4.2 (KitKat) Android OS, v4.4 (KitKat)
Processor Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 Quad-core 1.2 GHz Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410
GPU Mali-T628 MP6 - Adreno 306
RAM 2 GB 1 GB 1 GB
Internal Memory 32 GB 16 GB 8 GB
External Memory No microSD, up to 64 GB microSD, up to 32 GB

display Display

Type Super AMOLED capacitive touchscreen Super AMOLED Capacitive Touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 4.5 inches 4.7 inches
Resolution 720 x 1280 pixels (320 ppi) 540 x 960 pixels (245 ppi) 720 x 1280 pixels (312 ppi)
Screen-to-Body Ratio 66.95% 65.39% 67.83%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No - FM Radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 12 MP, 4128 x 3096 pixels 8 MP, 3264x2448 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Sony Sensor, Panorama, Real-time HDR
Video 2160p@30fps 1080p@30fps Yes, 1080p
Front Camera 2.1 MP [Similar] 5 MP [Similar] 2 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP, EDR, LE v4.0, BLE, ANT+ v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32 GB, 2 GB RAM 16 GB, 1 GB RAM 8 GB, 1 GB RAM / 16 GB, 2 GB RAM
Expandable Storage No microSD, up to 64 GB microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC supported NFC supported NFC not supported

battery Battery

Type Li-Ion Battery Non-removable Li-Po Battery Li-Po Battery
Capacity 1860 mAh 1900 mAh 2200 mAh
Stand by - - -
Talk Time - - -