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Samsung Galaxy S2 Duos
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VS |
Karbonn A21
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VS |
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| Best Price |
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| Price |
Not Available |
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Rs. 6,999.00 |
| Battery |
| Capacity |
1800 mAH, Li-ion
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1800 mAH, Li-ion
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| TalkTime |
Up to Hours(2G)
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Up to 5 Hours(2G)
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| Stand By Time |
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Up to 200 Hours(2G)
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| Camera |
| Main Camera |
8 MP, Auto focus
60.0% more mega pixels (MP) on main camera than Karbonn A21. More main camera resolution means better picture quality and detailed photos, which will look sharp on a large screen. (8 MP, Auto focus vs. 5 MP, Auto focus)
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5 MP, Auto focus
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| Front Camera |
2 MP
53.8% more mega pixels (MP) on front camera than Karbonn A21. More front camera resolution means better selfies picture. Front facing cameras also used for video call on Skype (2 MP vs. 1.3 MP)
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1.3 MP
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| Video Recording |
Full HD @ 24, Stereo sound recording, Digital image stabilization, Optical image stabilization
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| Zoom |
Digital Zoom
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Digital Zoom
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| Camera Features |
Smile detection, Scenes, Continuos Shooting, Multi Shot
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Auto Focus
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| Flash |
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LED
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| Connectivity |
| Operating Frequency |
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GSM 1800 / 1900 / 900 MHz UMTS 2100 MHz | GSM 1800 / 1900 / 900 MHz
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| USB Connectivity |
No
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USB Port, USB 2.0, microUSB 2.0
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| GPRS |
Yes
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Yes
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| EDGE |
Yes
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Yes
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| 3G |
EV-DO , Rev.A
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HSDPA 7.2 Mbit/s, HSUPA
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| Wi-Fi |
Wi-Fi 802.11, a/b/g/n, Mobile Hotspot
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Wi-Fi 802.11, b/g/n
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| Bluetooth |
v3.0, A2DP
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v2.1, A2DP
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| Design |
| Touch Screen |
Capacitive Touchscreen
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Capacitive Touchscreen, Multi-touch
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| Weight |
138 grams
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104 grams
34.0 grams Lighter than Karbonn A21. light weight phone is easy to hold and can kept in your pocket for long time. (104 grams vs. 138 grams)
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| Dimensions |
129.8 x 68.9 x 9.70 mm
1.8 mm Thinner than Karbonn A21. Slim mobile phone is easy to handle and looks gorgeous in hand. (129.8 x 68.9 x 9.70 mm vs. 112 x 60.5 x 11.5 mm)
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112 x 60.5 x 11.5 mm
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| Screen Size |
4.5 Inch
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4.5 Inch
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| Colours |
Black
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Black
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| Display |
| Screen Resolution |
480 x 800 pixels
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480 x 800 pixels
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| Pixel Density (sharpness) |
207 ppi
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207 ppi
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| Display Type |
Super AMOLED Plus
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TFT
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| Features |
| Box Contents |
Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
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Handset, Battery, Charger, Earphone, USB Cable, User Manual, Warranty Card
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| Sensors |
Accelerometer, Proximity sensor, Compass, Gyroscope
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Accelerometer
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| Applications |
Document editor (Word, Excel, PowerPoint, PDF)
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| GPS |
with A-GPS
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Yes
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| General |
| Brand |
Samsung
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Karbonn
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| Model |
Galaxy S II Duos I929
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A21
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| Operating System |
Android v2.3 (Gingerbread)
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Android v4 (Ice Cream Sandwich)
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| SIM Slot(s) |
Single SIM
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Dual SIM, GSM+GSM
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| OS Type |
Android
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Android
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| Multimedia |
| FM Radio |
Stereo FM, RDS
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Yes
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| Loudspeaker |
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Yes
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| Audio Jack |
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3.5 mm
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| Performance |
| Processor |
Dual core, 1.2 GHz, Qualcomm Snapdragon
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Dual core, 1.2 GHz, Qualcomm Snapdragon
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| RAM |
1 GB
100.0% More RAM memory than Karbonn A21. more RAM makes your mobile significantly faster and efficient. (1 GB vs. 512 MB)
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512 MB
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| Storage |
| Internal Memory |
16 GB
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4 GB
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| Expandable Memory |
Up to 32 GB
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Up to 32 GB
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| Price Comparison |
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Compare Price
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Compare Price
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