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| ratings | ||||
| Overall NDTV Rating | Read Review | - | ||
| Design Rating | - | |||
| Display Rating | - | |||
| Software Rating | - | |||
| Performance Rating | - | |||
| Battery Life Rating | - | |||
| Camera Rating | - | |||
| Value for Money Rating | - | |||
| key specs | ||||
| Display | 5.00-inch | 5.70-inch | ||
| Processor | Qualcomm Snapdragon 200 | Qualcomm Snapdragon 400 | ||
| Front Camera | 5-megapixel | 5-megapixel | ||
| Rear Camera | 8-megapixel | 13-megapixel | ||
| RAM | 1GB | 1GB | ||
| Storage | 8GB | 8GB | ||
| Battery Capacity | 2200mAh | 3000mAh | ||
| OS | Windows Phone 8.1 | Windows Phone 8.1 | ||
| Resolution | 720x1280 pixels | 720x1280 pixels | ||
| general | ||||
| Brand | Microsoft | Microsoft | ||
| Model | Lumia 540 Dual SIM | Lumia 640 XL | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 144.00 x 73.69 x 9.37 | 157.90 x 81.50 x 9.00 | ||
| Weight (g) | 152.00 | 171.00 | ||
| Battery capacity (mAh) | 2200 | 3000 | ||
| Removable battery | Yes | Yes | ||
| Colours | Cyan, Orange, White, Black | - | ||
| Release date | - | March 1, 2015 | ||
| display | ||||
| Screen size (inches) | 5.00 | 5.70 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 720x1280 pixels | 720x1280 pixels | ||
| Pixels per inch (PPI) | 294 | 259 | ||
| hardware | ||||
| Processor | 1.2GHz quad-core | 1.2GHz quad-core | ||
| Processor make | Qualcomm Snapdragon 200 | Qualcomm Snapdragon 400 | ||
| RAM | 1GB | 1GB | ||
| Internal storage | 8GB | 8GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 128 | 128 | ||
| camera | ||||
| Rear camera | 8-megapixel | 13-megapixel | ||
| Rear flash | LED | LED | ||
| Front camera | 5-megapixel | 5-megapixel | ||
| software | ||||
| Operating system | Windows Phone 8.1 | Windows Phone 8.1 | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 b/g/n | 802.11 b/g/n | ||
| GPS | Yes | 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 | Yes | ||
| Number of SIMs | 2 | 1 | ||
| Wi-Fi Direct | No | No | ||
| Mobile High-Definition Link (MHL) | No | No | ||
| sim 1 | ||||
| SIM Type | Micro-SIM | Micro-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | No | No | ||
| sim 2 | ||||
| SIM Type | Micro-SIM | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | No | - | ||
| sensors | ||||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | No | No | ||
| Barometer | No | No | ||
| Temperature sensor | No | No | ||
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