Compare phones
| Global Score | |
| 91.8 | 81.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10 |
| 2021-01-29 | 2020-09-08 |
| 5.97 x 2.80 x 0.31 inches | 6.51 x 3.02 x 0.37 inches |
| 6.03 ounces | 7.58 ounces |
| Gray, Phantom pink, Violet and White | Cobalt blue and Shadow gray |
| Aluminum and Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 424 pixels per inch | 393 pixels per inch |
| 1300 cd/m2 brightness | 450 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 732G SM7150-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.63 | 9.36 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 10.78 |
| Camera | |
| 12.00 MP + 10.00 MP | 64.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.78 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5160mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 6.88 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S21 has an overall score of 91.8, which is better than Xiaomi Poco X3 NFC's score of 81.6. Galaxy S21 is a noticeably lighter and somewhat thinner cellphone than Xiaomi Poco X3 NFC, even when they were released with only a couple months difference. Both of these devices include Android OS, but Galaxy S21 has the newer 11 version and Xiaomi Poco X3 NFC has Android 10, giving you some nice extra features and improved performance.
The Galaxy S21 features a bit better processing unit than Xiaomi Poco X3 NFC, and although they both have a Octa-Core CPU, the Galaxy S21 also has a higher amount of RAM. The Galaxy S21 features a little more vivid display than Xiaomi Poco X3 NFC, because although it has a little bit smaller screen, and they both have the same resolution of 1080 x 2400 pixels, the Galaxy S21 also counts with a bit greater pixels density and much more brightness.
Xiaomi Poco X3 NFC has a better camera than Galaxy S21, because although it has a tinier diafragm aperture which is not favorable for low light captures and video, and they both have the same 3840x2160 (4K) video definition, the Xiaomi Poco X3 NFC also counts with a back-facing camera with a way higher resolution, faster 30 frames per second video frame rates and a bigger sensor taking more light and vivid colors.
The Xiaomi Poco X3 NFC counts with slightly more memory capacity to install applications and games or saving photos and videos than Samsung Galaxy S21, because although it has only 64 GB internal memory, it also counts with an external memory card slot that admits up to 256 GB. The Xiaomi Poco X3 NFC features longer battery lifetime than Galaxy S21, because it has a 5160mAh battery size.
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