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| ratings | ||||
| Overall NDTV Rating | Read Review | Read Review | ||
| Design Rating | ||||
| Display Rating | ||||
| Software Rating | ||||
| Performance Rating | ||||
| Battery Life Rating | ||||
| Camera Rating | ||||
| Value for Money Rating | ||||
| key specs | ||||
| Display | 4.00-inch | 4.50-inch | ||
| Processor | Spreadtrum SC9832A | Qualcomm Snapdragon 400 | ||
| Front Camera | 0.3-megapixel | 2-megapixel | ||
| Rear Camera | 2-megapixel | 8-megapixel | ||
| RAM | 1GB | 1GB | ||
| Storage | 8GB | 16GB | ||
| Battery Capacity | 1400mAh | 2100mAh | ||
| OS | Android 7.0 | Sailfish | ||
| Resolution | 480x800 pixels | 540x960 pixels | ||
| general | ||||
| Brand | Karbonn | Jolla | ||
| Model | A40 Indian | Smartphone | ||
| Release date | July 1, 2017 | November 1, 2013 | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 122.95 x 64.30 x 10.50 | 131.00 x 68.00 x 9.90 | ||
| Weight (g) | 118.00 | 141.00 | ||
| Battery capacity (mAh) | 1400 | 2100 | ||
| Removable battery | Yes | Yes | ||
| Colours | Blue, Coffee Brown, Black, Champagne | - | ||
| SAR value | 1.39 | - | ||
| display | ||||
| Screen size (inches) | 4.00 | 4.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 480x800 pixels | 540x960 pixels | ||
| hardware | ||||
| Processor | 1.3GHz quad-core | 1.4GHz dual-core | ||
| Processor make | Spreadtrum SC9832A | Qualcomm Snapdragon 400 | ||
| RAM | 1GB | 1GB | ||
| Internal storage | 8GB | 16GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 32 | - | ||
| camera | ||||
| Rear camera | 2-megapixel | 8-megapixel | ||
| Rear flash | Yes | LED | ||
| Front camera | 0.3-megapixel | 2-megapixel | ||
| software | ||||
| Operating system | Android 7.0 | Sailfish | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n | ||
| GPS | No | Yes | ||
| Bluetooth | Yes, v 4.00 | Yes, v 4.00 | ||
| NFC | No | Yes | ||
| Infrared | No | No | ||
| USB OTG | No | No | ||
| Headphones | 3.5mm | 3.5mm | ||
| FM | Yes | No | ||
| Number of SIMs | 2 | 1 | ||
| Wi-Fi Direct | No | No | ||
| Mobile High-Definition Link (MHL) | No | No | ||
| sim 1 | ||||
| SIM Type | Regular | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| sim 2 | ||||
| SIM Type | Regular | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | Yes | - | ||
| sensors | ||||
| Compass/ Magnetometer | No | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | No | Yes | ||
| Gyroscope | No | Yes | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
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