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- Karbonn Alfa A91 Champ vs Karbonn K21
Karbonn Alfa A91 Champ vs Karbonn K21 comparison
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| key specs | ||||
| Display | 4.00-inch | 2.20-inch | ||
| Processor | 1.2GHz quad-core | one-core | ||
| Front Camera | 0.3-megapixel | No | ||
| Rear Camera | 2-megapixel | 1.3-megapixel | ||
| RAM | 512MB | - | ||
| Storage | 4GB | - | ||
| Battery Capacity | 1400mAh | 1000mAh | ||
| OS | Android 5.0 | Proprietary | ||
| Resolution | 480x800 pixels | 176x220 pixels | ||
| general | ||||
| Brand | Karbonn | Karbonn | ||
| Model | Alfa A91 Champ | K21 | ||
| Form factor | Touchscreen | Bar | ||
| Dimensions (mm) | 127.00 x 64.40 x 10.60 | 111.50 x 47.30 x 14.30 | ||
| Weight (g) | 112.00 | 80.00 | ||
| Battery capacity (mAh) | 1400 | 1000 | ||
| Removable battery | Yes | Yes | ||
| Colours | Black - Blue, Coffee - Black & Champagne-Coffee | Coffee, Grey | ||
| Alternate names | - | K21 Radio jockey | ||
| Release date | - | December 1, 2011 | ||
| display | ||||
| Screen size (inches) | 4.00 | 2.20 | ||
| Touchscreen | Yes | No | ||
| Resolution | 480x800 pixels | 176x220 pixels | ||
| hardware | ||||
| Processor | 1.2GHz quad-core | one-core | ||
| RAM | 512MB | - | ||
| Internal storage | 4GB | - | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 32 | 8 | ||
| camera | ||||
| Rear camera | 2-megapixel | 1.3-megapixel | ||
| Rear flash | Yes | No | ||
| Front camera | 0.3-megapixel | No | ||
| software | ||||
| Operating system | Android 5.0 | Proprietary | ||
| connectivity | ||||
| Wi-Fi | Yes | No | ||
| Wi-Fi standards supported | 802.11 b/g/n | - | ||
| GPS | Yes | No | ||
| Bluetooth | Yes | Yes | ||
| NFC | No | No | ||
| Infrared | No | No | ||
| USB OTG | Yes | No | ||
| Headphones | 3.5mm | - | ||
| FM | Yes | Yes | ||
| Number of SIMs | 2 | 2 | ||
| Wi-Fi Direct | No | No | ||
| Mobile High-Definition Link (MHL) | No | No | ||
| sim 1 | ||||
| SIM Type | Micro-SIM | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | No | ||
| 4G/ LTE | No | No | ||
| sim 2 | ||||
| SIM Type | Micro-SIM | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | No | ||
| 4G/ LTE | No | No | ||
| sensors | ||||
| Compass/ Magnetometer | No | No | ||
| Proximity sensor | No | No | ||
| Accelerometer | Yes | No | ||
| Ambient light sensor | No | No | ||
| Gyroscope | No | No | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
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