Compare phones
| Global Score | |
| 81.4 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 10 |
| 2019-04-15 | 2020-06-19 |
| 5.81 x 2.78 x 0.29 inches | 6.44 x 2.96 x 0.35 inches |
| 5.47 ounces | 6.77 ounces |
| 16 777 216 | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 430 pixels per inch | 270 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.7 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 712 SDM712 chipset | Samsung Exynos 850 chipset |
| Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 616 GPU | Mali-G76 GPU |
| 9.36 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 13.00 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 | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 11.66 | 10.78 |
| 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 | |
| 3070mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Xiaomi Mi 9 SE is slightly better than Samsung Galaxy A21s, getting a global score of 81.4 against 77.7. Both of these phones include Android OS, but Xiaomi Mi 9 SE has the newer 9.0 Pie version while Samsung Galaxy A21s has Android 10. Although Xiaomi Mi 9 SE is older than the Samsung Galaxy A21s, it's design is somewhat thinner and somewhat lighter.
Xiaomi Mi 9 SE has a much more vibrant display than Galaxy A21s, because although it has a bit smaller screen, it also counts with a way better screen pixel density and a lot higher resolution of 1080 x 2340. Xiaomi Mi 9 SE has a bit superior processor than Galaxy A21s, and although they both have a Octa-Core processor, the Xiaomi Mi 9 SE also has more RAM.
The Xiaomi Mi 9 SE counts with a little bit more memory for applications and games than Samsung Galaxy A21s, because although it has no SD card slot, it also counts with more internal storage capacity. Xiaomi Mi 9 SE takes a bit better photographs and videos than Samsung Galaxy A21s, and although they both have a camera in the back with a 48 mega-pixels resolution and a same size back camera sensor, the Xiaomi Mi 9 SE also has a way higher 3840x2160 video resolution and a larger aperture to take better low light images.
Galaxy A21s features a much better battery duration than Xiaomi Mi 9 SE, because it has a 63% bigger battery capacity.
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