Phone Comparison - Samsung Galaxy S Duos 2 S7582 vs Micromax Unite A092 vs Karbonn Smart A55i

general General Info

Manufacturer Samsung Micromax Karbonn
Announced November 2013 June 2014 September 2014
Status Available - November 2013 Available - June 2014 Available - September 2014
Colors White, Black PristineWhite, ClassyBlack, Mystic Grey, Vibrant Yellow, Fiery R White, Black
Form Factor Candybar Candybar Candybar
Dimension 121.5 x 63.1 x 10.57 mm
(4.78 x 2.48 x 0.42 in)
- -
Weight 118 g (4.16 oz) - -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 2100 HSDPA 2100
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.3 (Jelly Bean) Android OS, v4.4.2 (KitKat)
Processor Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 Quad-core 1.2 GHz, Qualcomm MSM8212 Snapdragon 200 Dual-core 1.2 GHz, MTK 6572
GPU Broadcom VideoCore IV Adreno 302 Mali-400MP
RAM 768 MB 1 GB 256 MB
Internal Memory 4 GB (1.9 GB user available) 8 GB (2.99 GB for mass storage) 4 GB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT Capacitive Touchscreen, PLS IPS LCD Capacitive Touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.0 inches 3.5 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi) 320 x 480 pixels (165 ppi)
Screen-to-Body Ratio 59.52% - -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS FM Radio with Recording FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels 3 MP, 2048 x 1536 pixels
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging Fixed focus, Geo-tagging, Panorama Geo-tagging
Video Yes, 720p@30fps Yes, 480p Yes
Front Camera Yes, VGA [Similar] Yes, VGA [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 11 Mbps Yes
Bluetooth Yes, v4.0 with A2DP Yes, v4.0 Yes, v2.0 A2DP, EDR
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go Yes, microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support Yes, with A-GPS support
Browser HTML5 HTML5 HTML

memory User Memory

Internal 4 GB (1.9 GB user available), 768 MB RAM 8 GB (2.99 GB for mass storage), 1 GB RAM 4 GB ROM, 256 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - Supported -

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 not supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Li-Ion Battery Li-Ion Battery
Capacity 1500 mAh 1500 mAh 1100 mAh
Stand by Up to 280 h (3G) Up to 140 h -
Talk Time Up to 8 h (3G) Up to 5 h 30 min -