Compare phones
| Global Score | |
| 79.6 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10, 9.0 Pie | Android 11, 10, 9.0 Pie |
| 2019-04-10 | 2019-07-24 |
| 5.69 x 2.72 x 0.31 inches | 6.04 x 2.83 x 0.33 inches |
| 4.94 ounces | 6.13 ounces |
| Black, Blue, Coral and White | Blue, Gray and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.9 inches | 6.1 inches |
| 2340 x 1080 pixels | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 437 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Exynos 7904 chipset | Qualcomm Snapdragon 665 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Adreno 610 GPU |
| 8.91 | 9.09 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 13.18 |
| Camera | |
| 16.00 MP + 25.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.46 | 11.44 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.12 | 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
Galaxy A40 is a little bit better than the Xiaomi Mi A3, getting a 79.6 score against 79.2. These phones include the same Android 11 operating system, so both of them should provide identical OS features. Galaxy A40's design is just a bit thinner and lighter than Xiaomi Mi A3, even though both of them were released only a couple months apart.
The Xiaomi Mi A3 features a bit better processor than Samsung Galaxy A40. They have 4 GB of RAM memory and a Octa-Core CPU. Samsung Galaxy A40 has a brighter screen than Xiaomi Mi A3, because although it has a little smaller screen, it also counts with a much better amount of pixels per inch of screen and a much better resolution of 1080 x 2340 pixels.
Xiaomi Mi A3 counts with a greater memory for applications, games, photos and videos than Samsung Galaxy A40, because although it has a slot for an external memory card that supports a maximum of 256 GB against 512 GB, it also counts with 128 GB internal memory capacity. Xiaomi Mi A3 has a lot better camera than Samsung Galaxy A40, because although it has a smaller diafragm aperture which is not good for capturing images or video in low light environments, it also counts with a lot better 3840x2160 (4K) video definition, a larger sensor providing a higher image quality and a back-facing camera with way more MP.
The Xiaomi Mi A3 features longer battery duration than Galaxy A40, because it has a 30% more battery size.
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