Compare phones
| Global Score | |
| 84.1 | 84.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 14 |
| 2020-03-23 | 2024-07-19 |
| 6.26 x 2.96 x 0.35 inches | 6.28 x 5.64 x 0.18 inches |
| 6.63 ounces | 7.97 ounces |
| Midnight blue and Raven black | Black, Blue and White |
| Plastic and Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 8 inches |
| 2340 x 1080 pixels | 2488 x 2224 pixels |
| Super AMOLED | AMOLED |
| 403 pixels per inch | 417 pixels per inch |
| 420 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 10 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Adreno 750 GPU |
| 9.27 | 6.21 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 48.00 MP + 20.00 MP | 50.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.5 inches (1/2") sensor | 0.67 inches (1/1.49") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 11.55 | 12.54 |
| 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, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5100mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.88 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Mi Mix Fold 4 is a bit better than the Samsung Galaxy M21, getting an 84.3 score against 84.1. Both of these phones include Android OS (operating system), but Xiaomi Mi Mix Fold 4 has a more recent 14 version while Samsung Galaxy M21 has Android 11, so it provides a couple nice extra features. The Xiaomi Mi Mix Fold 4 construction is a lot newer and noticeably thinner, but somewhat heavier than Samsung Galaxy M21.
The Galaxy M21 features a way better processing power than Xiaomi Mi Mix Fold 4, although it has less RAM, they both have a Octa-Core processor. Xiaomi Mi Mix Fold 4 features a brighter screen than Samsung Galaxy M21, because it has a larger screen, a lot brighter screen, a just a bit more pixels per inch in the display and a much higher resolution of 2224 x 2488 pixels.
The Xiaomi Mi Mix Fold 4 has a better memory to install applications and games or saving photos and videos than Galaxy M21, because although it has no SD memory card expansion slot, it also counts with 256 GB internal memory capacity. The Galaxy M21 has a bit longer battery lifetime than Xiaomi Mi Mix Fold 4, because it has an 18% larger battery size.
Xiaomi Mi Mix Fold 4 takes clearer photos and videos than Samsung Galaxy M21, because it has a larger aperture to take better low-light photography, a much larger sensor, a way better video quality and a back facing camera with more mega-pixels.
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