| Global Score | |
| 84.4 | 91.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 14 | Android 11 |
| 2024-02-22 | 2021-01-29 |
| 6.35 x 2.96 x 0.36 inches | 5.97 x 2.80 x 0.31 inches |
| 7.75 ounces | 6.03 ounces |
| Black, Blue, Titanium Gray and White | Gray, Phantom pink, Violet and White |
| -- | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.7 inches | 6.2 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| AMOLED | Dynamic AMOLED |
| 524 pixels per inch | 424 pixels per inch |
| 3000 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 10.4 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 8 GB RAM |
| Adreno 750 GPU | Adreno 660 GPU |
| 6.21 | 9.63 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 32.00 MP | 12.00 MP + 10.00 MP |
| f/1.60 aperture | f/1.80 aperture |
| 23.00mm focal length | 26.00mm focal length |
| 0.4 inches (1/2.51") sensor | 0.57 inches (1/1.76") sensor |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.43 | 10.78 |
| 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 |
| Nano SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 5000mAh Dual Nano SIM Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy S21 has an overall score of 91.8, which is a little bit better than the Xiaomi 14 Ultra's global score of 84.4. Even though Samsung Galaxy S21 is noticeably older than Xiaomi 14 Ultra, it's body is much lighter and somewhat thinner. These devices have Android OS (Operating System), but Samsung Galaxy S21 has 11 version and Xiaomi 14 Ultra has Android 14 version.
The Galaxy S21 features a really superior processing power than Xiaomi 14 Ultra, although it has less RAM memory, they both have a Octa-Core processor. The Xiaomi 14 Ultra counts with a brighter screen than Galaxy S21, because it has a just a bit better pixel count per inch of screen, a bit larger screen, a better 1440 x 3200px resolution and a way brighter screen.
The Xiaomi 14 Ultra takes much better photographs and videos than Samsung Galaxy S21, because although it has a way smaller back-facing camera sensor capturing much worse quality pictures, and they both have the same 7680x4320 video quality, the Xiaomi 14 Ultra also counts with higher 30 fps video frame rate, a bigger diafragm aperture to capture better low-light images and video and a much more mega pixels camera in the back.
Xiaomi 14 Ultra features a superior memory capacity for apps and games than Galaxy S21, because it has 128 GB more internal storage capacity. The Xiaomi 14 Ultra has superior battery performance than Galaxy S21, because it has a 5000mAh battery size.
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