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- Samsung Galaxy S21 vs Samsung Galaxy S6
Samsung Galaxy S21 vs Samsung Galaxy S6 comparison
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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 | 6.20-inch | 5.10-inch | ||
| Processor | Samsung Exynos 2100 | Samsung Exynos 7 Octa 7420 | ||
| Front Camera | 10-megapixel | 5-megapixel | ||
| Rear Camera | 12-megapixel + 12-megapixel + 64-megapixel | 16-megapixel | ||
| RAM | 8GB | 3GB | ||
| Storage | 128GB, 256GB | 32GB | ||
| Battery Capacity | 4000mAh | 2550mAh | ||
| OS | Android 11 | Android 5.0 | ||
| Resolution | 1080x2400 pixels | 1440x2560 pixels | ||
| general | ||||
| Brand | Samsung | Samsung | ||
| Model | Galaxy S21 | Galaxy S6 | ||
| Release date | January 14, 2021 | March 1, 2015 | ||
| Form factor | Touchscreen | Touchscreen | ||
| Dimensions (mm) | 151.70 x 71.20 x 7.90 | 143.40 x 70.50 x 6.80 | ||
| Weight (g) | 171.00 | 138.00 | ||
| IP rating | IP68 | - | ||
| Battery capacity (mAh) | 4000 | 2550 | ||
| Fast charging | Proprietary | - | ||
| Wireless charging | Yes | - | ||
| Colours | Phantom Violet | - | ||
| Launched in India | - | Yes | ||
| Removable battery | - | No | ||
| display | ||||
| Screen size (inches) | 6.20 | 5.10 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 1080x2400 pixels | 1440x2560 pixels | ||
| Protection type | Gorilla Glass | Gorilla Glass | ||
| Aspect ratio | 20:9 | 16:9 | ||
| Pixels per inch (PPI) | 421 | 577 | ||
| hardware | ||||
| Processor | 2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz) | octa-core (4x2.1GHz + 4x1.5GHz) | ||
| Processor make | Samsung Exynos 2100 | Samsung Exynos 7 Octa 7420 | ||
| RAM | 8GB | 3GB | ||
| Internal storage | 128GB, 256GB | 32GB | ||
| Expandable storage | - | No | ||
| camera | ||||
| Rear camera | 12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron) | 16-megapixel (f/1.9, 1.12-micron) | ||
| No. of Rear Cameras | 3 | - | ||
| Rear autofocus | Yes | Yes | ||
| Rear flash | Yes | LED | ||
| Front camera | 10-megapixel (f/2.2, 1.22-micron) | 5-megapixel (f/1.9, 1.34-micron) | ||
| No. of Front Cameras | 1 | - | ||
| software | ||||
| Operating system | Android 11 | Android 5.0 | ||
| Skin | One UI 3.1 | TouchWiz | ||
| connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| Wi-Fi standards supported | 802.11 a/b/g/n/ac/ax | 802.11 a/b/g/n/ac | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes, v 5.00 | Yes, v 4.10 | ||
| NFC | Yes | Yes | ||
| USB Type-C | Yes | - | ||
| Number of SIMs | 2 | 1 | ||
| Infrared | - | Yes | ||
| USB OTG | - | Yes | ||
| Micro-USB | - | Yes | ||
| Headphones | - | 3.5mm | ||
| FM | - | No | ||
| Wi-Fi Direct | - | Yes | ||
| Mobile High-Definition Link (MHL) | - | No | ||
| sim 1 | ||||
| SIM Type | Nano-SIM | Nano-SIM | ||
| GSM/CDMA | GSM | GSM | ||
| 3G | Yes | Yes | ||
| 4G/ LTE | Yes | Yes | ||
| 5G | Yes | - | ||
| sim 2 | ||||
| SIM Type | Nano-SIM | - | ||
| GSM/CDMA | GSM | - | ||
| 3G | Yes | - | ||
| 4G/ LTE | Yes | - | ||
| 5G | Yes | - | ||
| sensors | ||||
| Face unlock | Yes | - | ||
| In-Display Fingerprint Sensor | Yes | - | ||
| Compass/ Magnetometer | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Gyroscope | Yes | Yes | ||
| Barometer | Yes | Yes | ||
| Fingerprint sensor | - | Yes | ||
| Temperature sensor | - | No | ||
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