Compare phones
| Global Score | |
| 85.3 | 85.5 |
| Basic Information | |
| Microsoft | Samsung |
| Android 11 | Android 11, 10 |
| 2021-09-20 | 2019-12-27 |
| 5.72 x 7.26 x 0.22 inches | 6.24 x 2.90 x 0.31 inches |
| 10.02 ounces | 6.07 ounces |
| Glacier and Obsidian | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass (Corning Gorilla Glass) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 540.00 | $ 282.00 |
| Display / Screen | |
| 8.3 inches | 6.5 inches |
| 2688 x 1892 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 396 pixels per inch | 405 pixels per inch |
| 800 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 (5 nm) chipset | Samsung 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 | 4 GB RAM |
| Adreno 660 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 12.00 MP + 12.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm 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 (240 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 5.92 |
| 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
Samsung Galaxy A51 has an overall score of 85.5, which is just a bit better than the Microsoft Surface Duo 2's score of 85.3. The Samsung Galaxy A51 construction is extremely lighter than the Microsoft Surface Duo 2, but it is incredibly thicker and was released about 21 months before. These devices include the same Android 11 OS (operating system).
The Microsoft Surface Duo 2 counts with just a bit better hardware performance than Galaxy A51, and although they both have a Octa-Core processor, the Microsoft Surface Duo 2 also has a higher amount of RAM memory. Microsoft Surface Duo 2 features a bit more vivid screen than Galaxy A51, because although it has a little bit lower screen pixels density, it also counts with a better 1892 x 2688px resolution and a larger screen.
The Galaxy A51 features a much greater memory capacity to install applications and games than Microsoft Surface Duo 2, and although they both have exactly the same internal storage, the Galaxy A51 also has a SD memory slot that supports a maximum of 512 GB. Microsoft Surface Duo 2 counts with just a bit better battery performance than Galaxy A51, because it has an 11 percent larger battery capacity.
Galaxy A51 captures much better photos and videos than Microsoft Surface Duo 2, because although it has a smaller aperture and slower video frame rate, and they both have the same 3840x2160 video definition, the Galaxy A51 also counts with a lot higher resolution back-facing camera.
Galaxy A51 is not only the best phones of the ones we are comparing here, but it's also by far the cheapest, making it very easy to pick between these phones.
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