Compare phones
| Global Score | |
| 76.7 | 85.3 |
| Basic Information | |
| Xiaomi | Microsoft |
| Android 11 | Android 11 |
| 2021-05-27 | 2021-09-20 |
| 6.23 x 2.96 x 0.33 inches | 5.72 x 7.26 x 0.22 inches |
| 6.70 ounces | 10.02 ounces |
| Moonlight White, Neptune Blue and Space Black, | Glacier and Obsidian |
| Glass and Plastic | Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 540.00 |
| Display / Screen | |
| 6.3 inches | 8.3 inches |
| 2340 x 1080 pixels | 2688 x 1892 pixels |
| IPS LCD | AMOLED |
| 409 pixels per inch | 396 pixels per inch |
| -- | 800 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.8 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Qualcomm Snapdragon 888 SM8350 (5 nm) chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali G52 MC2 GPU | Adreno 660 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 | |
| 48.00 MP + 13.00 MP | 12.00 MP + 12.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| -- | 27.00mm focal length |
| 0.5 inches (1/2") sensor | -- |
| 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 | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4449mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.1 |
| 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 |
Comparison review
The Microsoft Surface Duo 2 is much better than the Xiaomi Redmi Note 8 2021, with an 85.3 score against 76.7. Both phones in this comparison review have the same Android 11 OS (operating system), so you shouldn't notice any difference regarding operating system features. The Microsoft Surface Duo 2 body is way thinner but notably heavier than the Xiaomi Redmi Note 8 2021, and they were released with only 4 months difference.
The Microsoft Surface Duo 2 features a little sharper screen than Xiaomi Redmi Note 8 2021, because although it has a little bit worse pixel density, it also counts with a much higher resolution of 1892 x 2688 pixels and a much bigger screen. The Microsoft Surface Duo 2 features a bit bigger storage for applications, games, photos and videos than Xiaomi Redmi Note 8 2021, because although it has no slot for an SD memory card, it also counts with 64 GB more internal storage capacity.
The Microsoft Surface Duo 2 has just a bit better processing power than Xiaomi Redmi Note 8 2021, and although they both have 8 cpu cores, the Microsoft Surface Duo 2 also has a greater amount of RAM memory. The Xiaomi Redmi Note 8 2021 features a bit better camera than Microsoft Surface Duo 2, because although it has a tinier aperture which is not nice for shooting photographs in low light situations and worse video frame rate, and they both have the same (Full HD) video definition, the Xiaomi Redmi Note 8 2021 also counts with a camera in the back with way more mega pixels.
Microsoft Surface Duo 2 has just a bit better battery performance than Xiaomi Redmi Note 8 2021, because it has 4449mAh of battery capacity.
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