| Global Score | |
| 79.2 | 76.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11, 10, 9.0 Pie | Android 4.4.4 |
| 2019-07-24 | -- |
| 6.04 x 2.83 x 0.33 inches | 5.21 x 2.58 x 0.26 inches |
| 6.13 ounces | 4.06 ounces |
| Blue, Gray and White | Black, Blue, Gold, Gray and White |
| Glass (Corning Gorilla Glass 5) and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 320.00 |
| Display / Screen | |
| 6.1 inches | 4.7 inches |
| 1560 x 720 pixels | 720 x 1280 pixels (HD) |
| Super AMOLED | Super AMOLED |
| 282 pixels per inch | 312 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 7.3 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 665 chipset | Qualcomm Snapdragon 801 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Krait 400 (Quad-Core 2500 MHz) processor |
| 4 GB RAM | 2 GB (933 MHz) RAM |
| Adreno 610 GPU | Adreno 330 (450 MHz) GPU |
| 9.09 | 9.36 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 13.18 | 5.8 |
| Camera | |
| 48.00 MP + 32.00 MP | 12.00 MP + 2.10 MP |
| f/1.80 aperture | f/2.20 aperture |
| -- | 31.00mm focal length |
| 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 (120 fps) (HD) slow motion video |
| 11.44 | 9.46 |
| 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, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM |
| 6.7 | 7 |
| Battery Life | |
| 4030mAh Battery | 1860mAh Li-Ion Battery |
| Non-Removable Battery | Removable Battery |
| -- | 11 hours talk time |
| 5.92 | 3.76 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.0 |
| 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 | -- |
The Xiaomi Mi A3 is a bit better than the Galaxy Alpha, having a 79.2 score against 76.3. These phones work with Android OS, but the Xiaomi Mi A3 has older 11 version and Galaxy Alpha has Android 4.4.4. Although it's the best in this comparison review, the Xiaomi Mi A3 body is extremely thicker and heavier than the Galaxy Alpha.
The Galaxy Alpha counts with a bit faster processor than Xiaomi Mi A3, because although it has a lower number of cores and 2 GB lesser RAM memory, it also counts with an additional graphics co-processor. Galaxy Alpha has a better display than Xiaomi Mi A3, because although it has a bit lower 1280 x 720 resolution and a much smaller display, it also counts with a little greater screen density.
Xiaomi Mi A3 captures way better videos and photos than Samsung Galaxy Alpha, and although they both have the same 3840x2160 (4K) video resolution and the same video frame rate, the Xiaomi Mi A3 also has a much more megapixels camera and a larger aperture to take better low-light photography and videos.
Xiaomi Mi A3 counts with a way bigger memory capacity to install applications and games than Galaxy Alpha, because it has 128 GB internal storage and an external memory card slot that supports up to 256 GB. Xiaomi Mi A3 features a much longer battery performance than Galaxy Alpha, because it has a 4030mAh battery size instead of 1860mAh.
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