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- Samsung Metro 312 vs Karbonn K21
Samsung Metro 312 vs Karbonn K21 comparison
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| key specs | ||||
| Display | 2.00-inch | 2.20-inch | ||
| Processor | one-core | one-core | ||
| Front Camera | No | No | ||
| Rear Camera | 0.3-megapixel | 1.3-megapixel | ||
| Battery Capacity | 1000mAh | 1000mAh | ||
| OS | - | Proprietary | ||
| Resolution | - | 176x220 pixels | ||
| general | ||||
| Brand | Samsung | Karbonn | ||
| Model | Metro 312 | K21 | ||
| Release date | July 1, 2014 | December 1, 2011 | ||
| Form factor | Bar | Bar | ||
| Battery capacity (mAh) | 1000 | 1000 | ||
| Removable battery | Yes | Yes | ||
| Alternate names | - | K21 Radio jockey | ||
| Dimensions (mm) | - | 111.50 x 47.30 x 14.30 | ||
| Weight (g) | - | 80.00 | ||
| Colours | - | Coffee, Grey | ||
| display | ||||
| Screen size (inches) | 2.00 | 2.20 | ||
| Touchscreen | No | No | ||
| Resolution | - | 176x220 pixels | ||
| hardware | ||||
| Processor | one-core | one-core | ||
| Expandable storage | No | Yes | ||
| Expandable storage type | - | microSD | ||
| Expandable storage up to (GB) | - | 8 | ||
| camera | ||||
| Rear camera | 0.3-megapixel | 1.3-megapixel | ||
| Rear flash | No | No | ||
| Front camera | No | No | ||
| connectivity | ||||
| Wi-Fi | No | No | ||
| GPS | No | No | ||
| Bluetooth | Yes | Yes | ||
| NFC | No | No | ||
| Infrared | No | No | ||
| USB OTG | No | 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 | Regular | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | No | No | ||
| 4G/ LTE | No | No | ||
| sim 2 | ||||
| SIM Type | Regular | Regular | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | No | No | ||
| 4G/ LTE | No | No | ||
| sensors | ||||
| Compass/ Magnetometer | No | No | ||
| Proximity sensor | No | No | ||
| Accelerometer | No | No | ||
| Ambient light sensor | No | No | ||
| Gyroscope | No | No | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
| software | ||||
| Operating system | - | Proprietary | ||
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