Compare phones
| Global Score | |
| 79.3 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11, 10 | Android 11 |
| 2020-02-11 | 2021-01-29 |
| 6.51 x 3.02 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 7.34 ounces | 8.04 ounces |
| Atlantis blue, Matrix purple and Phoenix red | Phantom black and Silver |
| Glass (Corning Gorilla Glass 5) and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.7 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 393 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 730G SM7150-AB chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 10.1 |
| Camera | |
| 64.00 MP + 20.00 MP | 108.00 MP + 40.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.75 inches (1/1.33") 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 | 13.75 |
| 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 | |
| 4500mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | 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
Galaxy S21 Ultra is a lot better than the Xiaomi Poco X2, with a score of 98.1 against 79.3. Both of these phones include the same Android 11 OS, so you shouldn't perceive any difference in that aspect. The Galaxy S21 Ultra design has the same thickness than Xiaomi Poco X2, but it is a bit heavier.
The Samsung Galaxy S21 Ultra counts with a little better hardware performance than Xiaomi Poco X2, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has more RAM. Galaxy S21 Ultra has a much more vibrant display than Xiaomi Poco X2, because it has a greater screen pixel density, a bit bigger screen and a higher resolution of 1440 x 3200 pixels.
The Galaxy S21 Ultra has a better camera than Xiaomi Poco X2, because it has a bigger diafragm aperture to take better images and video in poorly lited situations, a lot larger back-facing camera sensor capturing lot better quality pictures and videos, a lot higher 7680x4320 video definition and a camera with a lot better resolution.
The Galaxy S21 Ultra features a much better storage to store more apps and games than Xiaomi Poco X2, because it has 128 GB internal memory. The Galaxy S21 Ultra has just a little better battery lifetime than Xiaomi Poco X2, because it has 5000mAh of battery capacity instead of 4500mAh.
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