Compare phones
| Global Score | |
| 86.5 | 85.3 |
| Basic Information | |
| Samsung | Microsoft |
| Android 11, 10 | Android 11 |
| 2020-03-05 | 2021-09-20 |
| 6.27 x 2.96 x 0.35 inches | 5.72 x 7.26 x 0.22 inches |
| 6.74 ounces | 10.02 ounces |
| Black, Blue and Red | Glacier and Obsidian |
| Plastic and Plastic | Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 540.00 |
| Display / Screen | |
| 6.4 inches | 8.3 inches |
| 2340 x 1080 pixels | 2688 x 1892 pixels |
| Super AMOLED | AMOLED |
| 403 pixels per inch | 396 pixels per inch |
| 420 cd/m2 brightness | 800 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 888 SM8350 (5 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.36 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 12.00 MP + 12.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.59 inches (1/1.7") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.1 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4449mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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
Galaxy M31 is a little bit better than the Microsoft Surface Duo 2, getting an 86.5 score against 85.3. Both of these phones include the same Android 11 operating system. Despite of the fact the Galaxy M31 is older and extremely thicker than Microsoft Surface Duo 2, it's design is still extremely lighter.
The Microsoft Surface Duo 2 counts with a bit faster processor than Samsung Galaxy M31, and although they both have 8 CPU cores, the Microsoft Surface Duo 2 also has a larger amount of RAM memory. Microsoft Surface Duo 2 features a bit more vivid display than Galaxy M31, because although it has a little lower pixels quantity per inch of display, it also counts with a bigger screen, a much better 1892 x 2688 resolution and way more display brightness.
The Galaxy M31 features a better memory to install applications and games than Microsoft Surface Duo 2, because although it has just 64 GB internal memory capacity, it also counts with a SD memory card expansion slot that holds a maximum of 512 GB. Galaxy M31 counts with superior battery performance than Microsoft Surface Duo 2, because it has a 6000mAh battery capacity.
Galaxy M31 has a very superior camera than Microsoft Surface Duo 2, because although it has a tinier diafragm aperture and worse video frame rates, and they both have the same 3840x2160 video definition, the Galaxy M31 also counts with a way more megapixels back-facing camera.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.