Compare phones
| Global Score | |
| 85.3 | 80.1 |
| Basic Information | |
| Microsoft | Xiaomi |
| Android 11 | Android 15 |
| 2021-09-20 | -- |
| 5.72 x 7.26 x 0.22 inches | -- |
| 10.02 ounces | -- |
| Glacier and Obsidian | -- |
| Glass (Corning Gorilla Glass) | -- |
| Scratch-Resistant Glass | -- |
| $ 540.00 | -- |
| Display / Screen | |
| 8.3 inches | 6.7 inches |
| 2688 x 1892 pixels | -- |
| AMOLED | AMOLED |
| 396 pixels per inch | -- |
| 800 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.8 | 5 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 (5 nm) chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| Kryo 680, 64-bit (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 16 GB RAM |
| Adreno 660 GPU | Adreno 830 GPU |
| 9.63 | 6.3 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 12.00 MP + 12.00 MP | 200.00 MP + 32.00 MP |
| f/1.70 aperture | -- |
| 27.00mm 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 (1920 fps) (Full HD) slow motion video |
| 10.01 | 12.87 |
| Networks | |
| Wi-Fi | -- |
| Mobile Hotspot | -- |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 10.6 | 7.6 |
| Battery Life | |
| 4449mAh Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 7.52 |
| 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, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Microsoft Surface Duo 2 has a global score of 85.3, which is slightly better than Xiaomi 15 Ultra (Rumored)'s 80.1 overall score. Both phones in this comparison use Android operating system, but Microsoft Surface Duo 2 has older 11 version while Xiaomi 15 Ultra (Rumored) has Android 15. Microsoft Surface Duo 2 features a very superior processing power than Xiaomi 15 Ultra (Rumored), although it has a smaller amount of RAM, they both have 8 processing cores.
Microsoft Surface Duo 2 has a way better display than Xiaomi 15 Ultra (Rumored), because although it has much worse brightness, it also counts with a bigger display. Xiaomi 15 Ultra (Rumored) takes much better videos and photos than Microsoft Surface Duo 2, because it has a lot higher resolution camera and a way higher video resolution.
Xiaomi 15 Ultra (Rumored) features a much better storage to install applications and games or saving photos and videos than Microsoft Surface Duo 2, because it has 512 GB internal storage. The Xiaomi 15 Ultra (Rumored) has better battery lifetime than Microsoft Surface Duo 2, because it has 6000mAh of battery capacity.
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