Compare phones
| Global Score | |
| 85 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10, 9.0 Pie | Android 11, 10, 9.0 Pie |
| 2019-06-18 | 2019-07-24 |
| 6.11 x 2.91 x 0.31 inches | 6.04 x 2.83 x 0.33 inches |
| 5.93 ounces | 6.13 ounces |
| Midnight blue and Seawater blue | Blue, Gray and White |
| Plastic | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.1 inches |
| 2340 x 1080 pixels | 1560 x 720 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 675 SM6150 chipset | Qualcomm Snapdragon 665 chipset |
| Kryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 612 GPU | Adreno 610 GPU |
| 9.18 | 9.09 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 13.18 |
| Camera | |
| 32.00 MP + 16.00 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 |
| 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 (240 fps) (HD) slow motion video |
| 10.78 | 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 | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3500mAh Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 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 and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M40 is slightly better than the Xiaomi Mi A3, having an 85 score against 79.2. The Galaxy M40 construction is just a little bit lighter and just a bit thinner than the Xiaomi Mi A3, even though they were released only a couple of months apart. These phones come with Android OS, but Galaxy M40 has 10 version and Xiaomi Mi A3 has Android 11 version.
The Galaxy M40 features a sharper display than Xiaomi Mi A3, because it has more pixels per inch of display, a bit larger screen and a much higher resolution of 1080 x 2340. The Galaxy M40 has a little bit better storage capacity for apps and games than Xiaomi Mi A3, and although they both have the same 128 GB internal memory capacity, the Galaxy M40 also has an external memory card slot that admits a maximum of 512 GB.
Galaxy M40 has a little bit better hardware performance than Xiaomi Mi A3, and although they both have 8 cores, the Galaxy M40 also has a greater amount of RAM memory. The Xiaomi Mi A3 shoots just a bit better pictures and videos than Galaxy M40, because although it has a smaller aperture which is not recommended for capturing photographs in low-light environments, and they both have the same 3840x2160 (4K) video resolution and the same 30 fps video frame rates, the Xiaomi Mi A3 also counts with a larger sensor capturing better quality photographs and videos and a back camera with a lot better 48 MP resolution.
The Xiaomi Mi A3 counts with a bit superior battery lifetime than Galaxy M40, because it has a 15 percent greater battery capacity.
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