Compare phones
| Global Score | |
| 91.8 | 84.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 14 |
| 2021-01-29 | 2024-07-19 |
| 5.97 x 2.80 x 0.31 inches | 6.28 x 5.64 x 0.18 inches |
| 6.03 ounces | 7.97 ounces |
| Gray, Phantom pink, Violet and White | Black, Blue and White |
| Aluminum and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | -- |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 8 inches |
| 2400 x 1080 pixels | 2488 x 2224 pixels |
| Dynamic AMOLED | AMOLED |
| 424 pixels per inch | 417 pixels per inch |
| 1300 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 10 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 750 GPU |
| 9.63 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 12.00 MP + 10.00 MP | 50.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.67 inches (1/1.49") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.78 | 12.54 |
| 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) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5100mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.92 | 6.88 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy S21 is a bit better than Xiaomi Mi Mix Fold 4, having a 91.8 score against 84.3. Even though Samsung Galaxy S21 is extremely older and extremely thicker than Xiaomi Mi Mix Fold 4, it's body is still much lighter. Both of these phones use Android OS (operating system), but Samsung Galaxy S21 has the previous 11 version and Xiaomi Mi Mix Fold 4 has Android 14.
Samsung Galaxy S21 has a much faster processing unit than Xiaomi Mi Mix Fold 4, although it has 4 GB less RAM, they both have a Octa-Core processor. Xiaomi Mi Mix Fold 4 counts with a little bit better screen than Galaxy S21, because although it has a bit worse quantity of pixels per display inch, it also counts with a much better 2224 x 2488 pixels resolution, a really brighter screen and a larger display.
The Xiaomi Mi Mix Fold 4 has a lot bigger storage to store more games and applications than Galaxy S21, because it has more internal storage. Xiaomi Mi Mix Fold 4 has a much better camera than Samsung Galaxy S21, and although they both have the same video resolution and the same video frame rate, the Xiaomi Mi Mix Fold 4 also has a bigger camera aperture, a back camera with a much higher resolution and a bigger sensor taking more light and vivid colors.
Xiaomi Mi Mix Fold 4 counts with better battery life than Galaxy S21, because it has a 5100mAh battery capacity against 4000mAh.
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