Compare phones
| Global Score | |
| 91.8 | 82.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10, 9.0 Pie |
| 2021-01-29 | 2019-06-17 |
| 5.97 x 2.80 x 0.31 inches | 6.17 x 2.93 x 0.35 inches |
| 6.03 ounces | 6.74 ounces |
| Gray, Phantom pink, Violet and White | Carbon Black, Flame Red and Glacier Blue |
| Aluminum and Plastic | Metal and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 424 pixels per inch | 403 pixels per inch |
| 1300 cd/m2 brightness | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 10.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.78 | 11.66 |
| 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 | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 | FM Radio |
Comparison review
The Galaxy S21 is better than the Xiaomi Mi 9T, getting a overall score of 91.8 against 82.2. The Galaxy S21 design is newer, somewhat thinner and lighter than the Xiaomi Mi 9T. These phones come with Android operating system, but the Galaxy S21 has newer 11 version and Xiaomi Mi 9T has Android 10, counting with lots of additional features and performance tweaks.
The Galaxy S21 has a little faster CPU than Xiaomi Mi 9T, and although they both have 8 cpu cores, the Galaxy S21 also has 2 GB more RAM. Galaxy S21 has a bit sharper screen than Xiaomi Mi 9T, because although it has a bit smaller display, it also counts with a quite greater display pixels density, a lot brighter display and a slightly better 1080 x 2400 pixels resolution.
Galaxy S21 and Xiaomi Mi 9T both count with quite similar memory to install applications and games or saving photos and videos, both have equal 128 GB internal memory capacity. Xiaomi Mi 9T's battery performance is very similar to the battery duration in Galaxy S21. The Xiaomi Mi 9T features just a bit better camera than Galaxy S21, because although it has a smaller back-facing camera sensor which offers a lower photo and video quality, and they both have the same 3840x2160 video definition and a F1.8 diafragm aperture, the Xiaomi Mi 9T also counts with a way more mega-pixels camera in the back and higher video frame rates.
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