Compare phones
| Global Score | |
| 88.3 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11 |
| 2021-05-06 | 2021-01-29 |
| 6.45 x 3.01 x 0.41 inches | 6.50 x 2.98 x 0.35 inches |
| 7.41 ounces | 8.04 ounces |
| Mirror Black and Pale Grey | Phantom black and Silver |
| Metal and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| $ 499.00 | $ 966.00 |
| Display / Screen | |
| 6.7 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| -- | Dynamic AMOLED |
| 393 pixels per inch | 516 pixels per inch |
| 1300 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.1 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 650 GPU | Adreno 660 GPU |
| 9.81 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.99 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Dual SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S21 Ultra is much better than the Xiaomi Black Shark 4, with a 98.1 score against 88.3. Both phones we compare here work with the same Android 11 OS. Even though Galaxy S21 Ultra and Xiaomi Black Shark 4 were released only a couple months apart, the Galaxy S21 Ultra construction is just a little bit heavier but thinner than Xiaomi Black Shark 4.
Xiaomi Black Shark 4 features a bit better processing power than Samsung Galaxy S21 Ultra, although it has a lower amount of RAM, they both have a Octa-Core CPU. Galaxy S21 Ultra counts with a bit better display than Xiaomi Black Shark 4, because it has a bit larger screen, a better 1440 x 3200px resolution, a quite more screen brightness and a greater screen pixel density.
Galaxy S21 Ultra shoots much better photos and videos than Xiaomi Black Shark 4, and although they both have a same size diafragm aperture, the Galaxy S21 Ultra also has a lot bigger camera sensor capturing more light and vivid colors, a lot higher video quality and a much more mega pixels camera in the back.
The Galaxy S21 Ultra features as much storage for apps and games as the Xiaomi Black Shark 4, they have exactly the same 128 GB internal memory. Samsung Galaxy S21 Ultra features just a little better battery duration than Xiaomi Black Shark 4, because it has a 5000mAh battery capacity.
Although Galaxy S21 Ultra is a better device, it is way more expensive than Xiaomi Black Shark 4, and it doesn't have such a good relation between it's price and quality as the Xiaomi Black Shark 4. So if you need that extra specs, you can buy the Galaxy S21 Ultra, but if you don't you can save a couple dollars and buy the Xiaomi Black Shark 4, giving up a couple features and specifications.
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