Compare phones
| Global Score | |
| 72.6 | 91.8 |
| Basic Information | |
| Samsung | |
| Android 10 | Android 11 |
| 2020-06-02 | 2021-01-29 |
| 6.45 x 2.98 x 0.35 inches | 5.97 x 2.80 x 0.31 inches |
| 7.13 ounces | 6.03 ounces |
| Arctic white and Glacier blue | Gray, Phantom pink, Violet and White |
| Glass and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 380.00 | $ 722.00 |
| Display / Screen | |
| 6.6 inches | 6.2 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 399 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 640 GPU | Adreno 660 GPU |
| 9.72 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 12.00 MP + 10.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.54 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4200mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.08 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy S21 is a lot better than the realme X3 SuperZoom, having a 91.8 score against 72.6. Even when the Samsung Galaxy S21 and realme X3 SuperZoom were only released 8 months apart, the Samsung Galaxy S21 is thinner and somewhat lighter. Both devices in this review use Android OS (Operating System), but Samsung Galaxy S21 has newer 11 version while realme X3 SuperZoom has Android 10.
The realme X3 SuperZoom counts with a bit superior processor than Samsung Galaxy S21. They have a 8 GB RAM and 8 cores. The Galaxy S21 has a more vivid display than realme X3 SuperZoom, because although it has a bit smaller screen, and they both have exactly the same resolution of 1080 x 2400, the Galaxy S21 also counts with a just a bit better screen pixels density.
The realme X3 SuperZoom has a much better camera than Galaxy S21, and although they both have the same diafragm aperture and the same video quality, the realme X3 SuperZoom also has higher video frame rate, a much better 64 mega pixels resolution camera and a bigger back camera sensor providing a higher image quality.
Galaxy S21 counts with as much memory capacity to store more apps and games as the realme X3 SuperZoom, both of them have exactly the same internal storage. The realme X3 SuperZoom has a bit superior battery life than Samsung Galaxy S21, because it has a 5% more battery capacity.
The Samsung Galaxy S21 is a lot more expensive than realme X3 SuperZoom, but it's still a great deal, as you can get a much better phone for that extra money.
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