Compare phones
| Global Score | |
| 85.3 | 79 |
| Basic Information | |
| Microsoft | Xiaomi |
| Android 11 | Android 11, 10 |
| 2021-09-20 | 2020-04-07 |
| 5.72 x 7.26 x 0.22 inches | 6.53 x 3.02 x 0.35 inches |
| 10.02 ounces | 7.37 ounces |
| Glacier and Obsidian | Aurora blue, Glacier white and Interstellar grey |
| Glass (Corning Gorilla Glass) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 540.00 | $ 249.00 |
| Display / Screen | |
| 8.3 inches | 6.7 inches |
| 2688 x 1892 pixels | 2400 x 1080 pixels |
| AMOLED | IPS LCD |
| 396 pixels per inch | 393 pixels per inch |
| 800 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.8 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 (5 nm) chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Kryo 680, 64-bit (Octa-Core 2840 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 12.00 MP + 12.00 MP | 48.00 MP + 16.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| -- | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.01 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4449mAh Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | 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 |
Comparison review
Microsoft Surface Duo 2 has a score of 85.3, which is just a bit better than Xiaomi Redmi Note 9S's overall score of 79. These phones work with the same Android 11 operating system, so both should provide you identical operating system features. Microsoft Surface Duo 2 is a newer and notably thinner phone than the Xiaomi Redmi Note 9S, but it's also much heavier.
The Microsoft Surface Duo 2 features just a little better hardware performance than Xiaomi Redmi Note 9S, and although they both have a Octa-Core processing unit, the Microsoft Surface Duo 2 also has 4 GB more RAM memory. The Microsoft Surface Duo 2 counts with a bit more vivid display than Xiaomi Redmi Note 9S, because it has a bigger screen, a just a little greater pixel quantity per inch of screen and a higher 1892 x 2688 pixels resolution.
The Xiaomi Redmi Note 9S counts with a better storage capacity to store more games and applications than Microsoft Surface Duo 2, because although it has only 64 GB internal memory, it also counts with a slot for external memory cards that supports up to 512 GB. The Xiaomi Redmi Note 9S features a much better camera than Microsoft Surface Duo 2, because although it has a tinier aperture and worse 30 frames per second video frame rate, and they both have the same 3840x2160 video resolution, the Xiaomi Redmi Note 9S also counts with a back camera with way more mega pixels.
Xiaomi Redmi Note 9S features just a bit longer battery life than Microsoft Surface Duo 2, because it has 5020mAh of battery capacity instead of 4449mAh.
Although Microsoft Surface Duo 2 is a better device, it costs a lot more money than the Xiaomi Redmi Note 9S, and it doesn't have such a good price and quality relation as the Xiaomi Redmi Note 9S. If you are trying to save some money, you can get the Xiaomi Redmi Note 9S, giving up a couple features, but you'll get the most with your savings.
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