Compare phones
| Global Score | |
| 83.3 | 91.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10, 9.0 Pie, 8.0 Oreo | Android 11 |
| 2018-06-05 | 2021-01-29 |
| 6.10 x 2.94 x 0.30 inches | 5.97 x 2.80 x 0.31 inches |
| 6.17 ounces | 6.03 ounces |
| Black, Blue, Gold and White | Gray, Phantom pink, Violet and White |
| Glass (Corning Gorilla Glass 5) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.2 inches | 6.2 inches |
| 2248 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Dynamic AMOLED |
| 402 pixels per inch | 424 pixels per inch |
| 600 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 630 GPU | Adreno 660 GPU |
| 9.63 | 9.63 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 12.00 MP + 20.00 MP | 12.00 MP + 10.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 56.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 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 |
| 9.9 | 10.78 |
| 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 |
| 6.7 | 10.7 |
| Battery Life | |
| 3400mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.36 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 |
Comparison review
Samsung Galaxy S21 is better than Xiaomi Mi 8, having a 91.8 score against 83.3. The Samsung Galaxy S21 design is way newer and just a little lighter than the Xiaomi Mi 8's, although it's just a little bit thicker. Both of these devices include Android OS, but Samsung Galaxy S21 has a more recent 11 version while Xiaomi Mi 8 has Android 10.
The Galaxy S21 features a little more vivid screen than Xiaomi Mi 8, and although they both have a screen of the same size, the Galaxy S21 also has a much brighter display, a little bit greater pixel density and a slightly higher resolution of 1080 x 2400 pixels. The Xiaomi Mi 8 and the Galaxy S21 both count with very similar processors, and although the Galaxy S21 has a greater amount of RAM, they both have 8 CPU cores.
The Xiaomi Mi 8 counts with much more memory capacity to install applications and games than Galaxy S21, because it has more internal storage. Galaxy S21 counts with a bit better camera than Xiaomi Mi 8, and although they both have a same size camera aperture and a same resolution camera in the back, the Galaxy S21 also has a way better 7680x4320 video quality and a lot bigger sensor taking way better quality photographs and videos.
The Galaxy S21 counts with improved battery life than Xiaomi Mi 8, because it has an 18% greater battery size.
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