Compare phones
| Global Score | |
| 81.4 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 11, 10 |
| 2019-04-15 | 2019-12-27 |
| 5.81 x 2.78 x 0.29 inches | 6.24 x 2.90 x 0.31 inches |
| 5.47 ounces | 6.07 ounces |
| 16 777 216 | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 430 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.7 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 712 SDM712 chipset | Samsung Exynos 9611 chipset |
| Kryo 360, 64-bit, 10 nm (Octa-Core 2300 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 616 GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 32.00 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 |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.66 | 11.55 |
| 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.92 |
| 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
Galaxy A51 is just a bit better than the Xiaomi Mi 9 SE, getting an 85.5 score against 81.4. Galaxy A51 is an a little thicker and a bit heavier device than Xiaomi Mi 9 SE. Both of these phones have Android OS, but the Galaxy A51 has 11 version while Xiaomi Mi 9 SE has Android 9.0 Pie version. The Xiaomi Mi 9 SE counts with a bit better looking display than Galaxy A51, because although it has a little smaller screen and a quite lower 1080 x 2340px resolution, it also counts with a little bit more pixels per inch in the screen.
The Galaxy A51 features a very superior storage for applications, games, photos and videos than Xiaomi Mi 9 SE, and although they both have exactly the same internal storage capacity, the Galaxy A51 also has an external memory card slot that supports a maximum of 512 GB. The Xiaomi Mi 9 SE features just a little better hardware performance than Samsung Galaxy A51, and although they both have 8 CPU cores, the Xiaomi Mi 9 SE also has a greater amount of RAM.
The Xiaomi Mi 9 SE features a bit better camera than Samsung Galaxy A51, and although they both have a 0.5 inches back-facing camera sensor, the same video frame rates, the same resolution camera and the same video quality, the Xiaomi Mi 9 SE also has a larger aperture. The Samsung Galaxy A51 has greater battery life than Xiaomi Mi 9 SE, because it has 4000mAh of battery capacity instead of 3070mAh.
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