Compare phones
| Global Score | |
| 82.2 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10, 9.0 Pie | Android 11, 10 |
| 2019-06-17 | 2020-03-23 |
| 6.17 x 2.93 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| 6.74 ounces | 6.63 ounces |
| Carbon Black, Flame Red and Glacier Blue | Midnight blue and Raven black |
| Metal 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 |
| 430 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Exynos 9611 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 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 618 GPU | Mali-G72 MP3 GPU |
| 9.27 | 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 (30 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 |
| 11.66 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy M21 has a global score of 84.1, which is just a bit better than the Xiaomi Mi 9T's 82.2 score. Both of these phones use Android operating system, but the Galaxy M21 has newer 11 version and Xiaomi Mi 9T has Android 10. Galaxy M21 is a just a bit lighter cellphone than Xiaomi Mi 9T, but both have the same thickness.
Galaxy M21 features a screen that is just as good as the display in Xiaomi Mi 9T, and although the Galaxy M21 has less bright display, they both have the same display density, the same 1080 x 2340 resolution and a same size display. Galaxy M21 features a quite bigger memory capacity to install games and applications than Xiaomi Mi 9T, because although it has just 64 GB internal storage, it also counts with a slot for external memory cards that supports a maximum of 512 GB.
The Samsung Galaxy M21's processor is just as good as the processing unit in Xiaomi Mi 9T, and although the Samsung Galaxy M21 has a lower amount of RAM, they both have 8 processing cores. The Samsung Galaxy M21 counts with a really longer battery lifetime than Xiaomi Mi 9T, because it has a 6000mAh battery capacity.
The Xiaomi Mi 9T features a little bit better camera than Galaxy M21, and although they both have the same sensor size, a 48 mega pixels resolution camera, the same video frame rates and the same 3840x2160 (4K) video resolution, the Xiaomi Mi 9T also has a larger aperture to capture better photos and videos in low-light situations.
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