Compare phones
| Global Score | |
| 74.1 | 78.8 |
| Basic Information | |
| Xiaomi | Microsoft |
| Android 7.0 Nougat, 6.0 Marshmallow | Android 10 |
| 2017-01-23 | 2020-09-10 |
| 5.94 x 2.99 x 0.33 inches | 7.36 x 5.72 x 0.19 inches |
| 5.82 ounces | 8.82 ounces |
| 16 777 216 | Glacier |
| Aluminum | Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 190.00 | $ 540.00 |
| Display / Screen | |
| 5.5 inches | 8.1 inches |
| 1920 x 1080 pixels (Full HD) | 2700 x 1800 pixels |
| IPS LCD | AMOLED |
| 401 pixels per inch | 401 pixels per inch |
| 450 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Qualcomm Snapdragon 855 SM8150 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 506 GPU | Adreno 640 GPU |
| 9.09 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | No SD card slot |
| 10.02 | 10.1 |
| Camera | |
| 13.00 MP + 5.00 MP | 11.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 9.02 | 8.91 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4100mAh Li - Polymer Battery | 3577mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 5.52 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Microsoft Surface Duo has a score of 78.8, which is a little bit better than Xiaomi Redmi Note 4's 74.1 score. The Microsoft Surface Duo body is much newer and incredibly thinner than Xiaomi Redmi Note 4's, but it is incredibly heavier. These devices come with Android operating system, but the Microsoft Surface Duo has the previous 10 version while Xiaomi Redmi Note 4 has Android 7.0 Nougat version.
The Xiaomi Redmi Note 4 has a bit more vivid screen than Microsoft Surface Duo, although it has a way lower resolution of 1080 x 1920 pixels and a lot smaller display, they both have the same amount of pixels per inch in the screen. The Microsoft Surface Duo counts with a bit more powerful processing unit than Xiaomi Redmi Note 4, and although they both have the same number of cores, the Microsoft Surface Duo also has more RAM.
Microsoft Surface Duo counts with a bit bigger memory to store more games and applications than Xiaomi Redmi Note 4, because although it has no external SD slot, it also counts with 128 GB internal memory. Xiaomi Redmi Note 4 has a little better battery duration than Microsoft Surface Duo, because it has a 4100mAh battery capacity against 3577mAh.
Xiaomi Redmi Note 4 features a bit better camera than Microsoft Surface Duo, because although it has lower 30 frames per second video frame rates, and they both have the same 1920x1080 video definition and a same size aperture, the Xiaomi Redmi Note 4 also counts with a back-facing camera with a better resolution.
Although Microsoft Surface Duo is a better device, it is a lot more expensive than Xiaomi Redmi Note 4, and it doesn't have such a good price and quality relation as the Xiaomi Redmi Note 4. So if you need that extra specs and features, you can buy the Microsoft Surface Duo, but if you don't you can save a couple dollars and get the Xiaomi Redmi Note 4, letting go a couple features and specs.
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