Compare phones
| Global Score | |
| 83.2 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2019-03-06 | 2020-04-29 |
| 6.20 x 2.94 x 0.30 inches | 6.26 x 2.90 x 0.34 inches |
| 6.10 ounces | 6.60 ounces |
| Black, Blue and Purple | Prism cube black |
| Glass (Corning Gorilla Glass 5) and Metal | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Samsung Exynos 980 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Mali-G76 MP5 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 1000 GB) external memory slot |
| 10.1 | 15.38 |
| 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 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 12.1 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 10.7 |
| Battery Life | |
| 3300mAh Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 6.32 |
| 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 5G is a little bit better than Xiaomi Mi 9, getting a global score of 90.8 against 83.2. The Galaxy A51 5G design is newer than the Xiaomi Mi 9's, but it is a little bit heavier and somewhat thicker. Xiaomi Mi 9 has just a bit better hardware performance than Galaxy A51 5G. Both of them have a 6 GB RAM and a Octa-Core processor.
Xiaomi Mi 9 counts with a little more vivid display than Samsung Galaxy A51 5G, although it has a quite smaller display, a quite worse display density and a quite lower resolution of 1080 x 2340px. Xiaomi Mi 9 has a little bit better camera than Galaxy A51 5G, and although they both have a 0.5 inches sensor, the same (4K) video resolution and a 48 MP resolution back facing camera, the Xiaomi Mi 9 also has a bigger diafragm aperture for better low light images and higher video frame rate.
The Samsung Galaxy A51 5G counts with a much better storage for games and applications than Xiaomi Mi 9, and although they both have equal 128 GB internal memory, the Samsung Galaxy A51 5G also has a SD memory slot that holds up to 1000 GB. The Galaxy A51 5G counts with greater battery life than Xiaomi Mi 9, because it has 4500mAh of battery capacity.
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