Compare phones
| Global Score | |
| 85.3 | 86.5 |
| Basic Information | |
| Microsoft | Samsung |
| Android 11 | Android 11, 10 |
| 2021-09-20 | 2020-03-05 |
| 5.72 x 7.26 x 0.22 inches | 6.27 x 2.96 x 0.35 inches |
| 10.02 ounces | 6.74 ounces |
| Glacier and Obsidian | Black, Blue and Red |
| Glass (Corning Gorilla Glass) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 540.00 | -- |
| Display / Screen | |
| 8.3 inches | 6.4 inches |
| 2688 x 1892 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 396 pixels per inch | 403 pixels per inch |
| 800 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 (5 nm) chipset | Exynos 9611 chipset |
| Kryo 680, 64-bit (Octa-Core 2840 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.36 |
| 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 | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| -- | 0.59 inches (1/1.7") 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 | 1920 x 1080 (240 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 | 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 | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M31 has a score of 86.5, which is a little bit better than the Microsoft Surface Duo 2's score of 85.3. These phones have the same Android 11 OS (Operating System). Samsung Galaxy M31's body is lighter than the Microsoft Surface Duo 2, although it's noticeably thicker and was released about 19 months before.
Microsoft Surface Duo 2 features just a little better hardware performance than Galaxy M31, and although they both have the same number of cores, the Microsoft Surface Duo 2 also has more RAM memory. The Microsoft Surface Duo 2 features just a bit better looking display than Samsung Galaxy M31, because although it has a little bit inferior pixel quantity in each inch of screen, it also counts with a larger display, a much higher resolution of 1892 x 2688px and way more brightness.
Galaxy M31 shoots greater photographs and videos than Microsoft Surface Duo 2, because although it has a smaller aperture and worse 30 frames per second video frame rates, and they both have the same video quality, the Galaxy M31 also counts with a back-facing camera with a lot higher 64 mega-pixels resolution.
The Galaxy M31 features a greater storage capacity for applications, games, photos and videos than Microsoft Surface Duo 2, because although it has just 64 GB internal storage capacity, it also counts with a SD memory card expansion slot that admits up to 512 GB. Galaxy M31 counts with better battery duration than Microsoft Surface Duo 2, because it has 6000mAh of battery capacity against 4449mAh.
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