Compare phones
| Global Score | |
| 98.1 | 86.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10 |
| 2021-01-29 | 2020-05-08 |
| 6.50 x 2.98 x 0.35 inches | 6.64 x 3.04 x 0.41 inches |
| 8.04 ounces | 7.83 ounces |
| Phantom black and Silver | Armor gray, Lightning black and Star silver |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Aluminum and Aluminum |
| Scratch-Resistant Glass | -- |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.7 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | OLED |
| 516 pixels per inch | 393 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 865 SM8250 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 650 GPU |
| 9.72 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 108.00 MP + 40.00 MP | 64.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 13.75 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4720mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.56 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy S21 Ultra is much better than Xiaomi Black Shark 3, having a general score of 98.1 against 86.6. Even though the Samsung Galaxy S21 Ultra and the Xiaomi Black Shark 3 were released with only 9 months difference, the Samsung Galaxy S21 Ultra construction is thinner but also a little heavier. Both of these devices use Android OS (Operating System), but Samsung Galaxy S21 Ultra has a newer 11 version and Xiaomi Black Shark 3 has Android 10 version, giving you lots of additional features.
The Galaxy S21 Ultra counts with a much sharper display than Xiaomi Black Shark 3, because it has a little larger screen, a higher pixel amount in each inch of screen and a higher 1440 x 3200px resolution. Xiaomi Black Shark 3's memory for games and applications is just as good as Samsung Galaxy S21 Ultra's one, they have equal 128 GB internal memory capacity.
The Samsung Galaxy S21 Ultra has a bit better CPU than Xiaomi Black Shark 3, and although they both have a Octa-Core processor, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory. The Samsung Galaxy S21 Ultra shoots better photos and videos than Xiaomi Black Shark 3, and although they both have the same diafragm aperture, the Samsung Galaxy S21 Ultra also has a way larger sensor, a much more megapixels back camera and a lot better 7680x4320 video resolution.
The Galaxy S21 Ultra has a little better battery life than Xiaomi Black Shark 3, because it has a 6 percent more battery capacity.
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