Compare phones
| Global Score | |
| 78.8 | 77.7 |
| Basic Information | |
| Microsoft | Samsung |
| Android 10 | Android 10 |
| 2020-09-10 | 2020-06-19 |
| 7.36 x 5.72 x 0.19 inches | 6.44 x 2.96 x 0.35 inches |
| 8.82 ounces | 6.77 ounces |
| Glacier | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) | -- |
| Scratch-Resistant Glass | -- |
| $ 540.00 | -- |
| Display / Screen | |
| 8.1 inches | 6.5 inches |
| 2700 x 1800 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 401 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 855 SM8150 chipset | Samsung Exynos 850 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 640 GPU | Mali-G76 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 11.00 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.91 | 10.78 |
| 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 | |
| 3577mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.52 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
Comparison review
The Microsoft Surface Duo is a bit better than Galaxy A21s, having a 78.8 score against 77.7. Even though Microsoft Surface Duo and the Galaxy A21s were released only 3 months apart, the Microsoft Surface Duo design is incredibly heavier but also thinner than the Galaxy A21s. Both phones in our current comparison include the same Android 10 OS (operating system).
Microsoft Surface Duo has a much better display than Galaxy A21s, because it has a larger screen, a lot higher 1800 x 2700 resolution and a higher pixel density. The Microsoft Surface Duo counts with just a little better performance than Samsung Galaxy A21s, and although they both have the same number of cores, the Microsoft Surface Duo also has 3 GB more RAM memory.
The Galaxy A21s shoots way better photos and videos than Microsoft Surface Duo, because although it has lower video frame rate, and they both have the same camera aperture and the same 1920x1080 (Full HD) video definition, the Galaxy A21s also counts with a lot higher resolution back facing camera.
Microsoft Surface Duo has a bit more memory capacity for apps and games than Galaxy A21s, because although it has no slot for an external memory card, it also counts with 96 GB more internal storage. Galaxy A21s has a really longer battery lifetime than Microsoft Surface Duo, because it has a 40 percent larger battery capacity.
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