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key specs | ||||
Display | 3.50-inch | 5.00-inch | 4.50-inch | 4.00-inch |
Processor | 1GHz one-core | 1.2GHz quad-core | 1GHz dual-core | 1GHz one-core |
Front Camera | 0.3-megapixel | 2-megapixel | 0.3-megapixel | 0.3-megapixel |
Rear Camera | 3.2-megapixel | 8-megapixel | 5-megapixel | 5-megapixel |
RAM | 256MB | 1GB | 512MB | 512MB |
Storage | 512MB | 4GB | 164MB | 104MB |
Battery Capacity | 1100mAh | 2000mAh | 1400mAh | 1450mAh |
OS | Android 4.0 | Android 4.1 | Android 4 | Android 4 |
Resolution | 320x480 pixels | 540x960 pixels | 480x480 pixels | 480x800 pixels |
general | ||||
Brand | Karbonn | Karbonn | Karbonn | Karbonn |
Model | smart A51 | S5 Titanium | A7 Star | A6 |
Release date | September 1, 2013 | March 1, 2013 | May 1, 2013 | March 1, 2013 |
Form factor | Bar | Bar | Touchscreen | - |
Battery capacity (mAh) | 1100 | 2000 | 1400 | 1450 |
Removable battery | No | Yes | Yes | Yes |
Colours | Black, White | - | White, Black | - |
Dimensions (mm) | - | 143.40 x 72.40 x 8.95 | 113.00 x 66.00 x 10.40 | 128.00 x 65.70 x 11.60 |
Weight (g) | - | - | - | 114.50 |
display | ||||
Screen size (inches) | 3.50 | 5.00 | 4.50 | 4.00 |
Touchscreen | Yes | Yes | Yes | Yes |
Resolution | 320x480 pixels | 540x960 pixels | 480x480 pixels | 480x800 pixels |
Pixels per inch (PPI) | - | 220 | 218 | - |
hardware | ||||
Processor | 1GHz one-core | 1.2GHz quad-core | 1GHz dual-core | 1GHz one-core |
RAM | 256MB | 1GB | 512MB | 512MB |
Internal storage | 512MB | 4GB | 164MB | 104MB |
Expandable storage | Yes | Yes | Yes | Yes |
Expandable storage type | microSD | microSD | microSD | microSD |
Expandable storage up to (GB) | 32 | 32 | 32 | 32 |
camera | ||||
Rear camera | 3.2-megapixel | 8-megapixel | 5-megapixel | 5-megapixel |
Rear flash | LED | LED | LED | LED |
Front camera | 0.3-megapixel | 2-megapixel | 0.3-megapixel | 0.3-megapixel |
software | ||||
Operating system | Android 4.0 | Android 4.1 | Android 4 | Android 4 |
connectivity | ||||
Wi-Fi | Yes | Yes | Yes | Yes |
Wi-Fi standards supported | 802.11 b/g | - | - | - |
GPS | No | Yes | Yes | No |
Bluetooth | Yes | Yes | Yes | Yes |
NFC | No | No | No | No |
Infrared | No | No | No | No |
USB OTG | No | No | No | No |
Headphones | 3.5mm | 3.5mm | 3.5mm | - |
FM | Yes | Yes | Yes | No |
Number of SIMs | 2 | 2 | 2 | 2 |
Wi-Fi Direct | No | No | No | No |
Mobile High-Definition Link (MHL) | No | No | No | No |
sim 1 | ||||
SIM Type | Regular | Regular | Regular | Regular |
GSM/CDMA | GSM | GSM | GSM | GSM |
3G | No | Yes | No | No |
4G/ LTE | No | No | No | No |
sim 2 | ||||
SIM Type | Regular | Regular | Regular | Regular |
GSM/CDMA | GSM | GSM | GSM | GSM |
3G | No | No | No | No |
4G/ LTE | No | No | No | No |
sensors | ||||
Compass/ Magnetometer | No | No | No | No |
Proximity sensor | No | Yes | Yes | No |
Accelerometer | Yes | Yes | Yes | No |
Ambient light sensor | No | No | No | No |
Gyroscope | No | No | No | No |
Barometer | No | No | No | No |
Temperature sensor | No | No | No | No |
ratings | ||||
Overall NDTV Rating | - | Read Review | - | - |
Design Rating | - | - | - | |
Display Rating | - | - | - | |
Software Rating | - | - | - | |
Performance Rating | - | - | - | |
Battery Life Rating | - | - | - | |
Camera Rating | - | - | - | |
Value for Money Rating | - | - | - |