Phone Comparison - Samsung I929 Galaxy S II Duos vs Karbonn A21

Samsung I929 Galaxy S II Duos
samsung i929 galaxy s ii duos
Karbonn A21
karbonn a21
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general General Info

Manufacturer Samsung Karbonn
Announced December 2011 2012
Status Available - September 2012 Available
Colors Black Pearl White
Form Factor Candybar Candybar
Dimension 129.8 x 68.9 x 9.7 mm
(5.11 x 2.71 x 0.38 in)
-
Weight 138 g (4.87 oz) -
2G Network GSM 900 / 1800 / 1900
CDMA2000 1xEV-DO
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v2.3.5 (Gingerbread) Android OS, v4.0 (Ice Cream Sandwich)
Processor Dual-core 1.2 GHz, Qualcomm MSM8660 Snapdragon [Similar] Dual-core 1.2 GHz [Similar]
GPU Adreno 220 [Similar] -
RAM 1 GB [Browse Similar] 512 MB [Browse Similar]
Internal Memory 16 GB 4 GB
External Memory microSD, up to 32GB microSD, up to 32 GB

display Display

Type Super AMOLED Plus capacitive touchscreen TFT capacitive touchscreen
Colors 16M colors 256K colors
Size 4.52 inches [Similar] 4.5 inches [Similar]
Resolution 480 x 800 pixels (206 ppi) [Similar] 480 x 800 pixels (207 ppi) [Similar]
Screen-to-Body Ratio 65.28% -
Multi-Touch yes yes

multimedia Multimedia

3.5mm Jack yes yes
Radio Stereo FM radio with RDS No
Games Yes Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 8 MP, 3264x2448 pixels [Similar] 5 MP, 2592х1944 pixels [Similar]
Flash LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization Auto focus, Geo-tagging, Face Detection
Video Yes, 1080p@30fps Yes
Front Camera Yes, 2 MP [Similar] Yes, 1.3 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G Rev. A, up to 3.1 Mbps HSDPA, 7.2 Mbps
Bluetooth Yes, v3.0 with A2DP Yes, v2.1 with A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n
USB Yes, v2.0 microUSB (MHL), USB On-the-go Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support
Browser HTML, Adobe Flash HTML

memory User Memory

Internal 16GB, 1 GB RAM 4 GB, 512 MB RAM
Expandable Storage microSD, up to 32GB microSD, up to 32 GB
USB OTG Supported -

Apps Sensors

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

battery Battery

Type Standard battery, Li-Ion Li-Ion Battery
Capacity 1800 mAh 1800 mAh
Stand by - Up to 200 h
Talk Time - Up to 5 h