Compare phones
| Global Score | |
| 91.8 | 88.9 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10 |
| 2021-01-29 | 2019-09-24 |
| 5.97 x 2.80 x 0.31 inches | 6.08 x 2.85 x 0.41 inches |
| 6.03 ounces | 8.50 ounces |
| Gray, Phantom pink, Violet and White | Black |
| Aluminum and Plastic | Titanium |
| Scratch-Resistant Glass | -- |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 7.9 inches |
| 2400 x 1080 pixels | 2250 x 2088 pixels |
| Dynamic AMOLED | OLED |
| 424 pixels per inch | 389 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 855+ SM8150-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 640 GPU |
| 9.63 | 9.81 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 12.00 MP + 10.00 MP | 108.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 10.56 |
| 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, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4050mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| 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 Samsung Galaxy S21 is just a bit better than Xiaomi Mi Mix Alpha, getting a 91.8 score against 88.9. Both of these phones have Android OS (operating system), but the Samsung Galaxy S21 has the newer 11 version and Xiaomi Mi Mix Alpha has Android 10 version. Samsung Galaxy S21's construction is newer, extremely lighter and much thinner than Xiaomi Mi Mix Alpha.
Xiaomi Mi Mix Alpha has just a little better hardware performance than Samsung Galaxy S21, and although they both have 8 cpu cores, the Xiaomi Mi Mix Alpha also has more RAM. The Galaxy S21 features a more vivid display than Xiaomi Mi Mix Alpha, because although it has a way smaller display and a much lower 1080 x 2400 resolution, it also counts with a bit more pixels per inch in the display.
Xiaomi Mi Mix Alpha features a superior memory capacity to store more games and applications than Galaxy S21, because it has 384 GB more internal memory capacity. Xiaomi Mi Mix Alpha has a little better battery lifetime than Samsung Galaxy S21, because it has a 1% more battery capacity. The Galaxy S21 takes just a bit better photos and videos than Xiaomi Mi Mix Alpha, because although it has a much tinier back-facing camera sensor taking less light and washed colors, a back-facing camera with way less mega pixels resolution and a tinier aperture which is not good for taking pictures or video in low-light situations, it also counts with a lot better video definition.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.