Compare phones
| Global Score | |
| 98.1 | 87.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 11 |
| 2021-01-29 | 2021-03-27 |
| 6.50 x 2.98 x 0.35 inches | 6.44 x 3.01 x 0.31 inches |
| 8.04 ounces | 6.91 ounces |
| Phantom black and Silver | Arctic white, Deep Ocean blue and Night black |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.7 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 393 pixels per inch |
| 1500 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 9.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 870 SM8250-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 650 GPU |
| 9.72 | 9.81 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") 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 (120 fps) (HD) slow motion video |
| 13.75 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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, Dual SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4520mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.4 |
| Other Features | |
| Bluetooth 5.1 | 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 | -- |
Comparison review
Galaxy S21 Ultra has a general score of 98.1, which is much better than Xiaomi Poco F3's 87.3 global score. Although it's the best phone in this comparison, we must note that it's also heavier and thicker. Both of these devices include the same Android 11 operating system, so both should provide the user the same OS features.
Xiaomi Poco F3 counts with a bit better processor than Galaxy S21 Ultra, although it has 6 GB less RAM memory, they both have a Octa-Core processor. The Galaxy S21 Ultra has a bit better screen than Xiaomi Poco F3, because it has a better display density, a higher resolution of 1440 x 3200px, a little bit larger display and a little more brightness.
The Xiaomi Poco F3 and Samsung Galaxy S21 Ultra count with very similar memory to install games and applications, both have exactly the same 128 GB internal memory capacity. Galaxy S21 Ultra features a little longer battery lifetime than Xiaomi Poco F3, because it has an 11 percent bigger battery capacity.
The Galaxy S21 Ultra has a better camera than Xiaomi Poco F3, and although they both have a F1.8 camera aperture, the Galaxy S21 Ultra also has a lot better 7680x4320 video definition, a camera with a much better 108 mega pixels resolution and a much larger back camera sensor providing a lot higher image quality.
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