Compare phones
| Global Score | |
| 75.2 | 78.8 |
| Basic Information | |
| Xiaomi | Microsoft |
| Android 4.4.3 | Android 10 |
| 2014-07-22 | 2020-09-10 |
| 5.48 x 2.70 x 0.35 inches | 7.36 x 5.72 x 0.19 inches |
| 5.26 ounces | 8.82 ounces |
| Black and White | Glacier |
| -- | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 329.00 | $ 540.00 |
| Display / Screen | |
| 5 inches | 8.1 inches |
| 1080 x 1920 pixels (Full HD) | 2700 x 1800 pixels |
| IPS LCD | AMOLED |
| 441 pixels per inch | 401 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Qualcomm Snapdragon 855 SM8150 chipset |
| Qualcomm Krait 400 (Quad-Core 2500 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Adreno 330 (450 MHz) GPU | Adreno 640 GPU |
| 9.36 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 10.1 |
| Camera | |
| 13.00 MP + 8.00 MP | 11.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 0.33 inches (1/3.06") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | -- |
| 9.79 | 8.91 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3080mAh Li-Polymer Battery | 3577mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Microsoft Surface Duo has a global score of 78.8, which is just a bit better than the Xiaomi Mi 4's 75.2 overall score. The Microsoft Surface Duo is a incredibly newer and way thinner device than the Xiaomi Mi 4, although it is also way heavier. Both phones in this comparison use Android OS (operating system), but Microsoft Surface Duo has an older 10 version and Xiaomi Mi 4 has Android 4.4.3 version.
The Microsoft Surface Duo has a bit more powerful processing unit than Xiaomi Mi 4, because although it has doesn't have a GPU, it also counts with 4 more CPU cores and 3 GB more RAM. Xiaomi Mi 4 counts with a more vivid screen than Microsoft Surface Duo, because although it has a lot lower resolution of 1920 x 1080 and a much smaller display, it also counts with a little higher pixel number in each inch in the screen.
The Microsoft Surface Duo counts with a superior memory capacity for apps and games than Xiaomi Mi 4, because it has 64 GB more internal storage capacity. Microsoft Surface Duo has a bit longer battery lifetime than Xiaomi Mi 4, because it has 3577mAh of battery capacity. Xiaomi Mi 4 features a slightly better camera than Microsoft Surface Duo, because although it has lower 30 frames per second video frame rates, and they both have the same 3840x2160 (4K) video resolution, the Xiaomi Mi 4 also counts with a bigger camera aperture and a back facing camera with a better resolution.
Although Microsoft Surface Duo is a better device, it costs a lot more than the Xiaomi Mi 4, and it doesn't have such a good relation between it's price and quality as Xiaomi Mi 4. So if you want that extra specs and features, you can buy Microsoft Surface Duo, else you can save a couple dollars and buy the Xiaomi Mi 4, giving up some specs and features.
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