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| key specs | ||||
| Display | 4.00-inch | 4.50-inch | ||
| Processor | 1.3GHz quad-core | Qualcomm Snapdragon 210 | ||
| Front Camera | 2-megapixel | 2-megapixel | ||
| Rear Camera | 3.2-megapixel | 5-megapixel | ||
| RAM | 512MB | 1GB | ||
| Storage | 4GB | 8GB | ||
| Battery Capacity | 1800mAh | 2800mAh | ||
| OS | Android 6.0 | Android 6.0.1 | ||
| Resolution | 480x800 pixels | 480x854 pixels | ||
| general | ||||
| Brand | Celkon | Lyf | ||
| Model | Star 4G+ | C451 | ||
| Release date | September 1, 2017 | August 1, 2017 | ||
| Form factor | Touchscreen | Touchscreen | ||
| Battery capacity (mAh) | 1800 | 2800 | ||
| Removable battery | Yes | No | ||
| Colours | Gold, Champagne, Dark Blue, Black | White | ||
| Dimensions (mm) | - | 139.00 x 66.50 x 9.80 | ||
| Weight (g) | - | 165.00 | ||
| display | ||||
| Screen size (inches) | 4.00 | 4.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 480x800 pixels | 480x854 pixels | ||
| Pixels per inch (PPI) | - | 218 | ||
| hardware | ||||
| Processor | 1.3GHz quad-core | 1.3GHz quad-core | ||
| RAM | 512MB | 1GB | ||
| Internal storage | 4GB | 8GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 32 | 128 | ||
| Processor make | - | Qualcomm Snapdragon 210 | ||
| camera | ||||
| Rear camera | 3.2-megapixel | 5-megapixel | ||
| Rear flash | Yes | LED | ||
| Front camera | 2-megapixel | 2-megapixel | ||
| software | ||||
| Operating system | Android 6.0 | Android 6.0.1 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 4.10 | ||
| USB OTG | Yes | Yes | ||
| Headphones | 3.5mm | Yes | ||
| FM | Yes | No | ||
| Number of SIMs | 2 | 2 | ||
| Wi-Fi Direct | Yes | No | ||
| Wi-Fi standards supported | - | 802.11 b/g/n | ||
| NFC | - | No | ||
| Infrared | - | No | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| sim 1 | ||||
| SIM Type | Micro-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| sim 2 | ||||
| SIM Type | Micro-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | No | ||
| 4G/ LTE | Yes | No | ||
| sensors | ||||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Compass/ Magnetometer | - | No | ||
| Gyroscope | - | No | ||
| Barometer | - | No | ||
| Temperature sensor | - | No | ||
| ratings | ||||
| Overall NDTV Rating | - | Read Review | ||
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
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