Compare phones
| Global Score | |
| 85.5 | 78.8 |
| Basic Information | |
| Samsung | Microsoft |
| Android 11, 10 | Android 10 |
| 2019-12-27 | 2020-09-10 |
| 6.24 x 2.90 x 0.31 inches | 7.36 x 5.72 x 0.19 inches |
| 6.07 ounces | 8.82 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Glacier |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 540.00 |
| Display / Screen | |
| 6.5 inches | 8.1 inches |
| 2400 x 1080 pixels | 2700 x 1800 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 401 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 855 SM8150 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 11.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 26.00mm 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 (240 fps) (HD) slow motion video | -- |
| 11.55 | 8.91 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3577mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.52 |
| Other Features | |
| Bluetooth 5.0 | 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
Galaxy A51 is just a bit better than Microsoft Surface Duo, having a score of 85.5 against 78.8. Although Galaxy A51 and the Microsoft Surface Duo were released only a few months apart, Galaxy A51's construction is extremely lighter but way thicker than the Microsoft Surface Duo. Both of these devices use Android OS, but Galaxy A51 has a more recent 11 version and Microsoft Surface Duo has Android 10 version, counting with a lot of extra features and performance tweaks.
The Microsoft Surface Duo has just a bit better looking screen than Galaxy A51, because although it has a bit worse screen density, it also counts with a higher resolution of 1800 x 2700px and a bigger screen. Samsung Galaxy A51 counts with a much greater storage to store more games and applications than Microsoft Surface Duo, and although they both have equal 128 GB internal memory capacity, the Samsung Galaxy A51 also has a slot for external memory cards that holds up to 512 GB.
The Microsoft Surface Duo counts with a little bit better processing power than Samsung Galaxy A51, and although they both have 8 CPU cores, the Microsoft Surface Duo also has 2 GB more RAM. The Samsung Galaxy A51 has a bit better battery lifetime than Microsoft Surface Duo, because it has 4000mAh of battery capacity.
Samsung Galaxy A51 shoots a lot better videos and photos than Microsoft Surface Duo, because although it has lower video frame rate, and they both have the same video resolution and a same size aperture, the Samsung Galaxy A51 also counts with a way higher resolution back facing camera.
In addition to being the best phone in our current comparison, the Galaxy A51 is also a bargain compared to the other devices.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.