Compare phones
| Global Score | |
| 83.2 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2019-03-06 | 2020-03-23 |
| 6.20 x 2.94 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 6.10 ounces | 6.63 ounces |
| Black, Blue and Purple | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| 600 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.1 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy M21 is a little bit better than the Xiaomi Mi 9, with an 84.1 score against 83.2. The Samsung Galaxy M21 is a newer cellphone than Xiaomi Mi 9, but it is somewhat thicker and just a little heavier. The Xiaomi Mi 9 counts with a bit superior processing unit than Samsung Galaxy M21, and although they both have 8 cpu cores, the Xiaomi Mi 9 also has more RAM.
Xiaomi Mi 9 has a little bit better looking display than Galaxy M21, and although they both have a display of the same size, a greater number of pixels per display inch and the same resolution of 1080 x 2340, the Xiaomi Mi 9 also has a brighter screen. The Xiaomi Mi 9 features a little bit better camera than Samsung Galaxy M21, and although they both have a 48 megapixels back camera, a 0.5 inches back-facing camera sensor and the same 3840x2160 video definition, the Xiaomi Mi 9 also has a bigger aperture for better low-light photography and video and faster video frame rates.
The Samsung Galaxy M21 features a quite bigger memory capacity for games and applications than Xiaomi Mi 9, because although it has only 64 GB internal storage, it also counts with an external SD slot that holds up to 512 GB. Galaxy M21 counts with a way better battery duration than Xiaomi Mi 9, because it has 6000mAh of battery capacity instead of 3300mAh.
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