| Global Score | |
| 88.9 | 90.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 14 |
| 2019-09-24 | -- |
| 6.08 x 2.85 x 0.41 inches | -- |
| 8.50 ounces | -- |
| Black | -- |
| Titanium | Glass (Corning Gorilla Glass) and Titanium |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 7.9 inches | 6.8 inches |
| 2250 x 2088 pixels | 3088 x 1440 pixels |
| OLED | Dynamic AMOLED |
| 389 pixels per inch | 501 pixels per inch |
| -- | 2600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 10.2 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Qualcomm Snapdragon 8 Gen 4 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 640 GPU | Yes GPU |
| 9.81 | 6.21 |
| Storage | |
| 512 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 17.6 | 13.3 |
| Camera | |
| 108.00 MP | 200.00 MP + 12.00 MP |
| f/1.70 aperture | f/1.70 aperture |
| -- | 24.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.77 inches (1/1.3") sensor |
| 3840 x 2160 (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.56 | 14.74 |
| 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) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4050mAh Li - Ion Battery | 5000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.3 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Samsung Galaxy S25 Ultra is a bit better than the Xiaomi Mi Mix Alpha, having a global score of 90.7 against 88.9. Both of these phones use Android operating system, but the Samsung Galaxy S25 Ultra has a newer 14 version while Xiaomi Mi Mix Alpha has Android 10. Samsung Galaxy S25 Ultra is a extremely lighter and a lot thinner phone than Xiaomi Mi Mix Alpha.
Xiaomi Mi Mix Alpha has an extremely better CPU than Samsung Galaxy S25 Ultra. Both of them have a 12 GB RAM and 8 processing cores. The Galaxy S25 Ultra features a much better looking screen than Xiaomi Mi Mix Alpha, because although it has a bit lower resolution of 1440 x 3088 pixels and a little smaller display, it also counts with a higher pixel density.
Samsung Galaxy S25 Ultra counts with a greater camera than Xiaomi Mi Mix Alpha, and although they both have a same size aperture, the Samsung Galaxy S25 Ultra also has a way better 200 megapixels resolution back facing camera, a larger camera sensor and a much higher 7680x4320 video resolution. Xiaomi Mi Mix Alpha counts with a very superior memory for apps and games than Samsung Galaxy S25 Ultra, because it has 256 GB more internal memory.
The Samsung Galaxy S25 Ultra counts with superior battery lifetime than Xiaomi Mi Mix Alpha, because it has a 23 percent greater battery capacity.
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