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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 | 6.60-inch | 5.50-inch | ||
| Front Camera | 20-megapixel | 8-megapixel | ||
| Rear Camera | 48-megapixel + 8-megapixel + 5-megapixel + 5-megapixel | 13-megapixel | ||
| RAM | 6GB, 8GB | 3GB | ||
| Storage | 128GB | 16GB | ||
| Battery Capacity | 5000mAh | 3300mAh | ||
| OS | Android 11 | Android 6.0 | ||
| Processor | - | Samsung Exynos 7 Octa 7870 | ||
| Resolution | - | 1080x1920 pixels | ||
| general | ||||
| Brand | Samsung | Samsung | ||
| Model | Galaxy M42 5G | Galaxy J7 Prime | ||
| Release date | April 28, 2021 | September 1, 2016 | ||
| Launched in India | Yes | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Thickness | 8.6 | - | ||
| Battery capacity (mAh) | 5000 | 3300 | ||
| Fast charging | Proprietary | - | ||
| Colours | Prism Dot Black, Prism Dot Gray | Gold, Black | ||
| Dimensions (mm) | - | 151.50 x 74.90 x 8.10 | ||
| Weight (g) | - | 167.00 | ||
| Removable battery | - | No | ||
| display | ||||
| Screen size (inches) | 6.60 | 5.50 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | - | 1080x1920 pixels | ||
| Protection type | - | Gorilla Glass | ||
| Aspect ratio | - | 16:9 | ||
| Pixels per inch (PPI) | - | 401 | ||
| hardware | ||||
| Processor make | Qualcomm Snapdragon 750G | Samsung Exynos 7 Octa 7870 | ||
| RAM | 6GB, 8GB | 3GB | ||
| Internal storage | 128GB | 16GB | ||
| Expandable storage | Yes | Yes | ||
| Expandable storage type | microSD | microSD | ||
| Expandable storage up to (GB) | 1000 | 256 | ||
| Processor | - | 1.6GHz octa-core | ||
| camera | ||||
| Rear camera | 48-megapixel + 8-megapixel + 5-megapixel + 5-megapixel | 13-megapixel (f/1.9) | ||
| No. of Rear Cameras | 4 | - | ||
| Front camera | 20-megapixel | 8-megapixel (f/1.9) | ||
| No. of Front Cameras | 1 | - | ||
| Rear autofocus | - | Yes | ||
| Rear flash | - | LED | ||
| software | ||||
| Operating system | Android 11 | Android 6.0 | ||
| Skin | OneUI 3.1 | - | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 a/b/g/n/ac | - | ||
| Bluetooth | Yes, v 5.00 | Yes, v 4.10 | ||
| GPS | - | Yes | ||
| NFC | - | No | ||
| Infrared | - | No | ||
| USB OTG | - | Yes | ||
| Micro-USB | - | Yes | ||
| Headphones | - | 3.5mm | ||
| FM | - | Yes | ||
| Number of SIMs | - | 2 | ||
| Wi-Fi Direct | - | No | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| sim 1 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sim 2 | ||||
| SIM Type | - | Nano-SIM | ||
| GSM/CDMA | - | GSM | ||
| 3G | - | Yes | ||
| 4G/ LTE | - | Yes | ||
| sensors | ||||
| Fingerprint sensor | - | Yes | ||
| Compass/ Magnetometer | - | No | ||
| Proximity sensor | - | Yes | ||
| Accelerometer | - | Yes | ||
| Ambient light sensor | - | No | ||
| Gyroscope | - | No | ||
| Barometer | - | No | ||
| Temperature sensor | - | No | ||