Compare phones
| Global Score | |
| 84.1 | 86.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10 |
| 2020-03-23 | 2020-05-08 |
| 6.26 x 2.96 x 0.35 inches | 6.64 x 3.04 x 0.41 inches |
| 6.63 ounces | 7.83 ounces |
| Midnight blue and Raven black | Armor gray, Lightning black and Star silver |
| Plastic and Plastic | Aluminum and Aluminum |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | OLED |
| 403 pixels per inch | 393 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 865 SM8250 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 650 GPU |
| 9.27 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 64.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4720mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.56 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Xiaomi Black Shark 3 is just a bit better than the Samsung Galaxy M21, with an 86.6 score against 84.1. Both phones in our current comparison include Android operating system, but the Xiaomi Black Shark 3 has 10 version and Samsung Galaxy M21 has Android 11. Even being the best in this review, it must be told that it's also somewhat heavier and thicker.
The Xiaomi Black Shark 3 counts with a bit faster CPU than Galaxy M21, and although they both have 8 cores, the Xiaomi Black Shark 3 also has a greater amount of RAM. The Galaxy M21 features a bit more vivid display than Xiaomi Black Shark 3, because although it has a little smaller display and a quite lower resolution of 1080 x 2340 pixels, it also counts with a quite greater pixel density.
Xiaomi Black Shark 3 has just a bit better camera than Samsung Galaxy M21, and although they both have the same 3840x2160 (4K) video quality, the Xiaomi Black Shark 3 also has a larger camera aperture to capture better captures and videos in poorly lited situations, a camera with a way higher 64 mega-pixels resolution, faster video frame rates and a bigger back-facing camera sensor.
The Galaxy M21 has a better memory for applications, games, photos and videos than Xiaomi Black Shark 3, because although it has only 64 GB internal storage capacity, it also counts with a slot for an SD memory card that allows a maximum of 512 GB. Galaxy M21 has longer battery performance than Xiaomi Black Shark 3, because it has a 27 percent more battery capacity.
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