Compare phones
| Global Score | |
| 86.6 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11, 10 |
| 2020-05-08 | 2020-03-23 |
| 6.64 x 3.04 x 0.41 inches | 6.26 x 2.96 x 0.35 inches |
| 7.83 ounces | 6.63 ounces |
| Armor gray, Lightning black and Star silver | Midnight blue and Raven black |
| Aluminum and Aluminum | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| OLED | Super AMOLED |
| 393 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 865 SM8250 chipset | Exynos 9611 chipset |
| Kryo 585, 64-bit, 7 nm (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 650 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 64.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 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 | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.43 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 4720mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.56 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Xiaomi Black Shark 3 has an overall score of 86.6, which is a bit better than the Galaxy M21's 84.1 general score. Xiaomi Black Shark 3 is a somewhat heavier and somewhat thicker cellphone than Galaxy M21. Both of these phones come with Android OS, but the Xiaomi Black Shark 3 has older 10 version and Galaxy M21 has Android 11.
Samsung Galaxy M21 has a bit more vivid screen than Xiaomi Black Shark 3, because although it has a bit worse resolution of 1080 x 2340px and a little smaller screen, it also counts with a little bit higher quantity of pixels per display inch. Xiaomi Black Shark 3 features a little bit better performance than Galaxy M21, and although they both have the same number of cores, the Xiaomi Black Shark 3 also has a larger amount of RAM memory.
The Samsung Galaxy M21 has a greater storage to install applications and games or saving photos and videos than Xiaomi Black Shark 3, because although it has just 64 GB internal memory capacity, it also counts with a SD card slot that holds a maximum of 512 GB. The Xiaomi Black Shark 3 features a little bit better camera than Samsung Galaxy M21, and although they both have the same (4K) video resolution, the Xiaomi Black Shark 3 also has higher video frame rates, a larger aperture, a bigger sensor which provides a better image and video quality and a much higher resolution camera.
Galaxy M21 features superior battery performance than Xiaomi Black Shark 3, because it has 6000mAh of battery capacity.
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