Compare phones
| Global Score | |
| 77.7 | 81.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 9.0 Pie |
| 2020-06-19 | 2019-04-15 |
| 6.44 x 2.96 x 0.35 inches | 5.81 x 2.78 x 0.29 inches |
| 6.77 ounces | 5.47 ounces |
| Black, Blue, Red and White | 16 777 216 |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | AMOLED |
| 270 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.7 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 616 GPU |
| 9.09 | 9.36 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.78 | 11.66 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.04 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Mi 9 SE is slightly better than the Samsung Galaxy A21s, with a overall score of 81.4 against 77.7. The Xiaomi Mi 9 SE is an older phone than the Samsung Galaxy A21s, but it's thinner and lighter anyway. Both phones in this comparison review use Android operating system, but the Xiaomi Mi 9 SE has the newer 9.0 Pie version and Samsung Galaxy A21s has Android 10, so it offers a couple additional features.
The Xiaomi Mi 9 SE counts with a lot better looking display than Galaxy A21s, because although it has a bit smaller screen, it also counts with a way better pixels amount per inch of display and a lot higher 1080 x 2340 resolution. The Xiaomi Mi 9 SE features a bit more powerful processing unit than Galaxy A21s, and although they both have a Octa-Core processor, the Xiaomi Mi 9 SE also has 3 GB more RAM memory.
The Xiaomi Mi 9 SE features a bit better camera than Galaxy A21s, and although they both have a same size sensor and the same resolution back camera, the Xiaomi Mi 9 SE also has a bigger aperture to take better images in low light situations and a way higher 3840x2160 (4K) video resolution. Xiaomi Mi 9 SE counts with a little bit more memory capacity to install applications and games or saving photos and videos than Galaxy A21s, because although it has no slot for external memory cards, it also counts with 128 GB internal memory capacity.
The Galaxy A21s features a superior battery life than Xiaomi Mi 9 SE, because it has a 5000mAh battery capacity instead of 3070mAh.
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