Compare phones
| Global Score | |
| 78.8 | 79.2 |
| Basic Information | |
| Microsoft | Xiaomi |
| Android 10 | Android 11, 10, 9.0 Pie |
| 2020-09-10 | 2019-07-24 |
| 7.36 x 5.72 x 0.19 inches | 6.04 x 2.83 x 0.33 inches |
| 8.82 ounces | 6.13 ounces |
| Glacier | Blue, Gray and White |
| Glass (Corning Gorilla Glass 5) | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 540.00 | -- |
| Display / Screen | |
| 8.1 inches | 6.1 inches |
| 2700 x 1800 pixels | 1560 x 720 pixels |
| AMOLED | Super AMOLED |
| 401 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 855 SM8150 chipset | Qualcomm Snapdragon 665 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Adreno 610 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 13.18 |
| Camera | |
| 11.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 0.43 inches (1/2.3") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 8.91 | 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 | |
| 3577mAh Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | 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 |
Comparison review
Xiaomi Mi A3 is just a bit better than the Microsoft Surface Duo, getting a 79.2 score against 78.8. Both phones in this review work with Android OS (operating system), but Xiaomi Mi A3 has 11 version while Microsoft Surface Duo has Android 10 version. Xiaomi Mi A3 is an older and much thicker device than Microsoft Surface Duo, but Xiaomi was able to build it extremely lighter anyway.
Microsoft Surface Duo has a better looking screen than Xiaomi Mi A3, because it has more pixels per inch of screen, a much higher 1800 x 2700px resolution and a really larger screen. The Xiaomi Mi A3 features a very superior storage for applications, games, photos and videos than Microsoft Surface Duo, and although they both have exactly the same internal storage capacity, the Xiaomi Mi A3 also has an external memory card slot that supports a maximum of 256 GB.
The Microsoft Surface Duo features just a little better hardware performance than Xiaomi Mi A3, and although they both have 8 CPU cores, the Microsoft Surface Duo also has a greater amount of RAM. The Xiaomi Mi A3 features a way better camera than Microsoft Surface Duo, because although it has slower 30 frames per second video frame rate, and they both have the same video quality, the Xiaomi Mi A3 also counts with a larger aperture to take better photos in poorly lited environments and a camera with way more mega pixels.
The Xiaomi Mi A3 has just a bit longer battery life than Microsoft Surface Duo, because it has 4030mAh of battery capacity instead of 3577mAh.
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