Compare phones
| Global Score | |
| 76.1 | 78.8 |
| Basic Information | |
| Samsung | Microsoft |
| Android 10 | Android 10 |
| 2020-06-29 | 2020-09-10 |
| 6.61 x 3.02 x 0.32 inches | 7.36 x 5.72 x 0.19 inches |
| 6.81 ounces | 8.82 ounces |
| Black | Glacier |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 194.00 | $ 540.00 |
| Display / Screen | |
| 6.5 inches | 8.1 inches |
| 1600 x 720 pixels | 2700 x 1800 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 401 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.2 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 855 SM8150 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 16.00 MP + 13.00 MP | 11.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 0.33 inches (1/3.06") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 9.35 | 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 | 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
The Microsoft Surface Duo has an overall score of 78.8, which is a bit better than the Samsung Galaxy A21's global score of 76.1. Even though the Microsoft Surface Duo and the Samsung Galaxy A21 were released with only 2 months difference, the Microsoft Surface Duo design is heavier but extremely thinner. Both devices in this review include the same Android 10 OS (Operating System).
Microsoft Surface Duo counts with a little better performance than Galaxy A21, and although they both have the same number of cores, the Microsoft Surface Duo also has more RAM memory. The Microsoft Surface Duo features a much better display than Galaxy A21, because it has a lot better resolution of 1800 x 2700px, a bigger display and a better pixel quantity in each inch in the screen.
Microsoft Surface Duo features a little bit more storage to install applications and games than Samsung Galaxy A21, because although it has no slot for an SD memory card, it also counts with more internal memory. The Galaxy A21 has a bit superior battery life than Microsoft Surface Duo, because it has 4000mAh of battery capacity.
The Samsung Galaxy A21 counts with a little bit better camera than Microsoft Surface Duo, because although it has lower video frame rates, and they both have the same video resolution, the Samsung Galaxy A21 also counts with a camera with much more mega pixels and a bigger camera aperture.
Although Microsoft Surface Duo is a better device, it is a lot more expensive than Samsung Galaxy A21, and it doesn't have such a good quality/price relation as the Samsung Galaxy A21. If you are trying to save some dollars, you can buy the Samsung Galaxy A21, letting go a couple features and specs, but you will get the most out of your money.
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