Compare phones
| Global Score | |
| 85.3 | 80.6 |
| Basic Information | |
| Microsoft | Xiaomi |
| Android 11 | Android 14 |
| 2021-09-20 | 2024-10-29 |
| 5.72 x 7.26 x 0.22 inches | 6.00 x 2.80 x 0.32 inches |
| 10.02 ounces | 6.67 ounces |
| Glacier and Obsidian | -- |
| Glass (Corning Gorilla Glass) | Glass |
| Scratch-Resistant Glass | -- |
| $ 540.00 | -- |
| Display / Screen | |
| 8.3 inches | 6.4 inches |
| 2688 x 1892 pixels | 2670 x 1200 pixels |
| AMOLED | OLED |
| 396 pixels per inch | 457 pixels per inch |
| 800 cd/m2 brightness | 3200 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.8 | 10.2 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 (5 nm) chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| Kryo 680, 64-bit (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 830 GPU |
| 9.63 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 12.00 MP + 12.00 MP | 50.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.60 aperture |
| 27.00mm focal length | 23.00mm focal length |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.01 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G |
| Nano SIM, Dual SIM | Nano SIM |
| 10.6 | 7 |
| Battery Life | |
| 4449mAh Battery | 5400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 7.12 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.4 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass and Gyroscope |
Comparison review
The Microsoft Surface Duo 2 is slightly better than the Xiaomi 15, having a global score of 85.3 against 80.6. Both devices in this review come with Android operating system, but the Microsoft Surface Duo 2 has an older 11 version and Xiaomi 15 has Android 14 version. Although the Microsoft Surface Duo 2 is much older and heavier than Xiaomi 15, it's design is still thinner.
Microsoft Surface Duo 2 features a way better processing power than Xiaomi 15, although it has 4 GB lesser RAM, they both have the same number of cores. The Xiaomi 15 features a sharper screen than Microsoft Surface Duo 2, because although it has a way lower 1200 x 2670px resolution and a lot smaller display, it also counts with a much brighter display and a just a little higher number of pixels per inch in the screen.
The Xiaomi 15 has a much better camera than Microsoft Surface Duo 2, because it has a back camera with a lot higher 50 megapixels resolution, a lot higher video resolution and a larger aperture for better low-light photography and videos. Xiaomi 15 counts with a way bigger memory for applications and games than Microsoft Surface Duo 2, because it has 128 GB more internal memory capacity.
Xiaomi 15 counts with superior battery life than Microsoft Surface Duo 2, because it has 5400mAh of battery capacity.
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