Compare phones
| Global Score | |
| 90.8 | 85.3 |
| Basic Information | |
| Samsung | Microsoft |
| Android 11, 10 | Android 11 |
| 2020-04-29 | 2021-09-20 |
| 6.26 x 2.90 x 0.34 inches | 5.72 x 7.26 x 0.22 inches |
| 6.60 ounces | 10.02 ounces |
| Prism cube black | Glacier and Obsidian |
| Aluminum and Plastic | Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | $ 540.00 |
| Display / Screen | |
| 6.5 inches | 8.3 inches |
| 2400 x 1080 pixels | 2688 x 1892 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 396 pixels per inch |
| -- | 800 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.8 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 888 SM8350 (5 nm) chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Mali-G76 MP5 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | No SD card slot |
| 15.38 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 12.00 MP + 12.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 4449mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 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
Samsung Galaxy A51 5G has a general score of 90.8, which is a little bit better than the Microsoft Surface Duo 2's 85.3 overall score. These phones use the same Android 11 operating system. Even though the Samsung Galaxy A51 5G is older and way thicker than the Microsoft Surface Duo 2, it's body is still extremely lighter.
Microsoft Surface Duo 2 counts with just a bit better screen than Samsung Galaxy A51 5G, because although it has a just a little lower amount of pixels per inch of display, it also counts with a higher resolution of 1892 x 2688 pixels and a bigger display. The Galaxy A51 5G counts with a very superior storage to install games and applications than Microsoft Surface Duo 2, and although they both have exactly the same 128 GB internal memory, the Galaxy A51 5G also has a slot for an external memory card that supports a maximum of 1000 GB.
The Microsoft Surface Duo 2 features just a bit better hardware performance than Galaxy A51 5G, and although they both have the same number of cores, the Microsoft Surface Duo 2 also has 2 GB more RAM. The Galaxy A51 5G features a better camera than Microsoft Surface Duo 2, because although it has worse video frame rate and a smaller aperture, and they both have the same (4K) video quality, the Galaxy A51 5G also counts with a back-facing camera with a lot better resolution.
The Microsoft Surface Duo 2's battery duration is very similar to the battery duration in Galaxy A51 5G, although the Microsoft Surface Duo 2 has a 1% smaller battery capacity.
The Samsung Galaxy A51 5G not only is the best phones in our comparison, but it's also a bargain compared to others, making it an obvious call.
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