Compare phones
| Global Score | |
| 79.2 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-07-24 | 2020-04-29 |
| 6.04 x 2.83 x 0.33 inches | 6.26 x 2.90 x 0.34 inches |
| 6.13 ounces | 6.60 ounces |
| Blue, Gray and White | Prism cube black |
| Glass (Corning Gorilla Glass 5) and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 6.1 inches | 6.5 inches |
| 1560 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 282 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Samsung Exynos 980 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 610 GPU | Mali-G76 MP5 GPU |
| 9.09 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 13.18 | 15.38 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") 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 (240 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.44 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4030mAh Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| 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 is better than Xiaomi Mi A3, with a general score of 90.8 against 79.2. These phones have the same Android 11 OS (Operating System), so both should give the same OS features. Galaxy A51 5G's design is newer than Xiaomi Mi A3's, although it is a little bit thicker and just a bit heavier.
Galaxy A51 5G counts with a little faster processor than Xiaomi Mi A3, and although they both have a Octa-Core processing unit, the Galaxy A51 5G also has 2 GB more RAM memory. The Galaxy A51 5G features a more vivid display than Xiaomi Mi A3, because it has more pixels per display inch, a lot higher resolution of 1080 x 2400 pixels and a bit bigger display.
The Samsung Galaxy A51 5G captures just a bit better photos and videos than Xiaomi Mi A3, because although it has a tinier diafragm aperture which is not so good for capturing photographs and videos in low light environments, and they both have the same (4K) video quality, a 48 mega-pixels back-facing camera and the same video frame rate, the Samsung Galaxy A51 5G also counts with a larger back-facing camera sensor providing a better image quality.
The Galaxy A51 5G counts with a bigger memory to store more apps and games than Xiaomi Mi A3, and although they both have exactly the same 128 GB internal memory capacity, the Galaxy A51 5G also has an external SD slot that supports up to 1000 GB. Samsung Galaxy A51 5G features just a little better battery performance than Xiaomi Mi A3, because it has 4500mAh of battery capacity against 4030mAh.
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