Compare phones
| Global Score | |
| 98.1 | 87.5 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 12 |
| 2021-01-29 | 2022-06-23 |
| 6.50 x 2.98 x 0.35 inches | 6.43 x 2.99 x 0.30 inches |
| 8.04 ounces | 6.88 ounces |
| Phantom black and Silver | Moonlight Silver, Nebula Green and Night Black |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass (Corning Gorilla Glass 5) and Plastic |
| 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 (7 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 585, 64-bit (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 | 64.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm 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 | 11.88 |
| 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 |
| 10.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.32 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| 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
The Galaxy S21 Ultra is much better than the Xiaomi Poco F4, having a 98.1 score against 87.5. Despite being the best in our current comparison, Galaxy S21 Ultra's design is older, thicker and heavier than the Xiaomi Poco F4. Both phones in our current comparison come with Android operating system, but the Galaxy S21 Ultra has the older 11 version while Xiaomi Poco F4 has Android 12 version.
Xiaomi Poco F4 has a bit more powerful CPU than Galaxy S21 Ultra, although it has 6 GB lesser RAM memory, they both have 8 processing cores. Galaxy S21 Ultra counts with a little more vivid display than Xiaomi Poco F4, because it has a higher 1440 x 3200 resolution, a bit brighter display, a better screen pixel density and a bit larger screen.
The Samsung Galaxy S21 Ultra shoots better photographs and videos than Xiaomi Poco F4, and although they both have a F1.8 camera aperture, the Samsung Galaxy S21 Ultra also has a much more MP back facing camera, a way larger sensor capturing way better quality photographs and a much better video definition.
The Xiaomi Poco F4 has as much storage to store more apps and games as the Galaxy S21 Ultra one, both have exactly the same internal storage. Samsung Galaxy S21 Ultra has a bit better battery life than Xiaomi Poco F4, because it has a 5000mAh battery size instead of 4500mAh.
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