Compare phones
| Global Score | |
| 76.1 | 81.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 9.0 Pie |
| 2020-06-29 | 2019-04-15 |
| 6.61 x 3.02 x 0.32 inches | 5.81 x 2.78 x 0.29 inches |
| 6.81 ounces | 5.47 ounces |
| Black | 16 777 216 |
| Plastic and Plastic | -- |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.7 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 616 GPU |
| 9.27 | 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 | |
| 16.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") 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 |
| 9.35 | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.04 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Mi 9 SE has an overall score of 81.4, which is just a bit better than Samsung Galaxy A21's 76.1 overall score. The Xiaomi Mi 9 SE is an older cellphone than Samsung Galaxy A21, but it's lighter and just a little thinner anyway. Both of these devices have Android operating system, but the Xiaomi Mi 9 SE has 9.0 Pie version and Samsung Galaxy A21 has Android 10, so it gives you some extra features.
The Xiaomi Mi 9 SE counts with a sharper display than Galaxy A21, because although it has a little bit smaller display, it also counts with a much higher resolution of 1080 x 2340px and a lot greater pixels quantity per display inch. Xiaomi Mi 9 SE features just a bit bigger memory to install games and applications than Galaxy A21, because although it has no SD extension slot, it also counts with 128 GB internal storage.
The Xiaomi Mi 9 SE counts with a little bit better processing power than Galaxy A21, and although they both have a Octa-Core processing unit, the Xiaomi Mi 9 SE also has more RAM memory. Xiaomi Mi 9 SE shoots way better photos and videos than Galaxy A21, and although they both have a same size diafragm aperture, the Xiaomi Mi 9 SE also has a way better 3840x2160 (4K) video definition, a much more mega-pixels camera and a much larger camera sensor taking more light and vivid colors.
Galaxy A21 features improved battery duration than Xiaomi Mi 9 SE, because it has 4000mAh of battery capacity.
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