| Global Score | |
| 76.3 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 4.4.4 | Android 11, 10, 9.0 Pie |
| -- | 2019-07-24 |
| 5.21 x 2.58 x 0.26 inches | 6.04 x 2.83 x 0.33 inches |
| 4.06 ounces | 6.13 ounces |
| Black, Blue, Gold, Gray and White | Blue, Gray and White |
| -- | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 320.00 | -- |
| Display / Screen | |
| 4.7 inches | 6.1 inches |
| 720 x 1280 pixels (HD) | 1560 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 312 pixels per inch | 282 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.4 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 801 chipset | Qualcomm Snapdragon 665 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 2 GB (933 MHz) RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 610 GPU |
| 9.36 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 5.8 | 13.18 |
| Camera | |
| 12.00 MP + 2.10 MP | 48.00 MP + 32.00 MP |
| f/2.20 aperture | f/1.80 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 (120 fps) (HD) slow motion video | 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, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 7 | 6.7 |
| Battery Life | |
| 1860mAh Li-Ion Battery | 4030mAh Battery |
| Removable Battery | Non-Removable Battery |
| 11 hours talk time | -- |
| 3.76 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | 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 |
The Xiaomi Mi A3 has a score of 79.2, which is a bit better than Samsung Galaxy Alpha's overall score of 76.3. These phones include Android OS (operating system), but the Xiaomi Mi A3 has the older 11 version while Samsung Galaxy Alpha has Android 4.4.4. Although it's the best device we are comparing, the Xiaomi Mi A3 body is thicker and heavier than Samsung Galaxy Alpha.
Samsung Galaxy Alpha counts with a more vivid screen than Xiaomi Mi A3, because although it has a quite lower resolution of 1280 x 720px and a way smaller display, it also counts with a little higher screen pixel density. Xiaomi Mi A3 features much more storage for games and applications than Galaxy Alpha, because it has a SD extension slot that holds a maximum of 256 GB and 128 GB internal storage capacity.
The Samsung Galaxy Alpha has just a bit better processing power than Xiaomi Mi A3, because although it has less cores and less RAM memory, it also counts with an extra graphics processing unit. The Xiaomi Mi A3 has a way better battery duration than Galaxy Alpha, because it has a 117% more battery size.
The Xiaomi Mi A3 takes way better pictures and videos than Galaxy Alpha, and although they both have the same 3840x2160 video resolution and the same 30 frames per second video frame rate, the Xiaomi Mi A3 also has a back-facing camera with a way better resolution and a bigger diafragm aperture.
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