Compare phones
| Global Score | |
| 90.8 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11, 10, 9.0 Pie |
| 2020-04-29 | 2019-07-24 |
| 6.26 x 2.90 x 0.34 inches | 6.04 x 2.83 x 0.33 inches |
| 6.60 ounces | 6.13 ounces |
| Prism cube black | Blue, Gray and White |
| Aluminum and Plastic | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.1 inches |
| 2400 x 1080 pixels | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 665 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G76 MP5 GPU | Adreno 610 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 15.38 | 13.18 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.43 inches (1/2.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.55 | 11.44 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| 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 | FM Radio |
Comparison review
The Galaxy A51 5G has a general score of 90.8, which is much better than the Xiaomi Mi A3's 79.2 general score. Both devices we compare here work with the same Android 11 operating system, so you shouldn't see any differences regarding that. Galaxy A51 5G is a newer cellphone than the Xiaomi Mi A3, although it is a little heavier and a bit thicker.
Galaxy A51 5G has a bit better processing unit than Xiaomi Mi A3, and although they both have a Octa-Core processing unit, the Galaxy A51 5G also has a larger amount of RAM memory. The Galaxy A51 5G has a much better looking display than Xiaomi Mi A3, because it has a lot better 1080 x 2400 pixels resolution, a quite bigger screen and a higher pixels count in each inch in the display.
The Samsung Galaxy A51 5G takes just a bit better pictures and videos than Xiaomi Mi A3, because although it has a smaller aperture which is not nice for taking photographs and/or video in low light environments, and they both have a same resolution back camera, the same 30 fps video frame rates and the same 3840x2160 video quality, the Samsung Galaxy A51 5G also counts with a bigger back-facing camera sensor shooting better quality pictures.
Galaxy A51 5G counts with more memory capacity for games and applications than Xiaomi Mi A3, and although they both have equal 128 GB internal memory capacity, the Galaxy A51 5G also has a SD memory card expansion slot that admits a maximum of 1000 GB. Galaxy A51 5G has a bit better battery life than Xiaomi Mi A3, because it has 4500mAh of battery capacity against 4030mAh.
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