Compare phones
| Global Score | |
| 81.6 | 91.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11 |
| 2020-09-08 | 2021-01-29 |
| 6.51 x 3.02 x 0.37 inches | 5.97 x 2.80 x 0.31 inches |
| 7.58 ounces | 6.03 ounces |
| Cobalt blue and Shadow gray | Gray, Phantom pink, Violet and White |
| Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.7 inches | 6.2 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 393 pixels per inch | 424 pixels per inch |
| 450 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 732G SM7150-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.36 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 10.78 | 10.1 |
| Camera | |
| 64.00 MP + 20.00 MP | 12.00 MP + 10.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 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 |
| 12.1 | 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 | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 5160mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.88 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| 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 | FM Radio |
Comparison review
The Galaxy S21 has a score of 91.8, which is much better than the Xiaomi Poco X3 NFC's 81.6 general score. Both devices in this comparison review use Android OS, but Galaxy S21 has the newer 11 version while Xiaomi Poco X3 NFC has Android 10. Galaxy S21 is a a lot lighter and somewhat thinner phone than Xiaomi Poco X3 NFC, even when both were released only a couple months apart.
Samsung Galaxy S21 has a bit more vivid display than Xiaomi Poco X3 NFC, because although it has a quite smaller display, and they both have exactly the same 1080 x 2400 resolution, the Samsung Galaxy S21 also counts with a way brighter screen and a little greater quantity of pixels in each inch in the screen.
Samsung Galaxy S21 features a bit superior processor than Xiaomi Poco X3 NFC, and although they both have a Octa-Core CPU, the Samsung Galaxy S21 also has 2 GB more RAM memory. The Xiaomi Poco X3 NFC has a better camera than Galaxy S21, because although it has a tinier diafragm aperture which is not so good for low light photography and video, and they both have the same (4K) video resolution, the Xiaomi Poco X3 NFC also counts with a bigger back camera sensor providing a better image quality, higher 30 frames per second video frame rates and a camera in the back with lot more megapixels.
Xiaomi Poco X3 NFC has slightly more storage to install games and applications than Samsung Galaxy S21, because although it has just 64 GB internal memory, it also counts with a slot for SD memory cards that admits a maximum of 256 GB. Xiaomi Poco X3 NFC features longer battery life than Samsung Galaxy S21, because it has a 29 percent larger battery capacity.
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