Compare phones
| Global Score | |
| 80.4 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie, 8.1 Oreo | Android 11, 10 |
| 2018-04-20 | 2020-03-23 |
| 6.36 x 2.97 x 0.36 inches | 6.26 x 2.96 x 0.35 inches |
| 6.70 ounces | 6.63 ounces |
| Black, Blue and Gray | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 2160 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 403 pixels per inch |
| 550 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 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 630 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 | |
| 12.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.79 | 11.55 |
| 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 - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 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 Galaxy M21 has an overall score of 84.1, which is a little bit better than Xiaomi Black Shark's score of 80.4. These phones have Android operating system, but Galaxy M21 has an older 11 version and Xiaomi Black Shark has Android 9.0 Pie version. Galaxy M21's design is newer, a little thinner and a little bit lighter than Xiaomi Black Shark.
The Xiaomi Black Shark counts with a little more vivid display than Galaxy M21, because although it has a little bit smaller screen, a bit worse display pixels density and a little worse 1080 x 2160 resolution, it also counts with a brighter display. The Xiaomi Black Shark features a bit better processing unit than Samsung Galaxy M21, and although they both have the same number of cores, the Xiaomi Black Shark also has 4 GB more RAM memory.
Samsung Galaxy M21 counts with a quite bigger storage to install games and applications than Xiaomi Black Shark, because although it has 0 less internal storage capacity, it also counts with an external memory card slot that holds a maximum of 512 GB. The Galaxy M21 takes better videos and photos than Xiaomi Black Shark, because although it has a smaller aperture which is not recommended for low-light images and videos, and they both have the same video definition and the same 30 fps video frame rate, the Galaxy M21 also counts with a back facing camera with a much better 48 MP resolution and a lot larger sensor providing a way higher image quality.
The Samsung Galaxy M21 features a much better battery life than Xiaomi Black Shark, because it has 6000mAh of battery capacity instead of 4000mAh.
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