Compare phones
| Global Score | |
| 76.5 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11 |
| 2017-04-28 | 2021-01-29 |
| 5.72 x 2.78 x 0.29 inches | 6.50 x 2.98 x 0.35 inches |
| 5.93 ounces | 8.04 ounces |
| Black, Blue and White | Phantom black and Silver |
| Glass and Metal | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| $ 421.00 | $ 966.00 |
| Display / Screen | |
| 5.2 inches | 6.8 inches |
| 1920 x 1080 pixels (Full HD) | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 424 pixels per inch | 516 pixels per inch |
| 600 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.7 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2457 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Adreno 540 GPU | Adreno 660 GPU |
| 9.45 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 8.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 27.00mm focal length | 24.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.68 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 3 | 10.7 |
| Battery Life | |
| 3350mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.36 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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 |
Comparison review
Galaxy S21 Ultra is way better than Xiaomi Mi 6, with a 98.1 score against 76.5. Galaxy S21 Ultra's design is notably newer, but thicker and notably heavier than the Xiaomi Mi 6. The Samsung Galaxy S21 Ultra features a brighter screen than Xiaomi Mi 6, because it has a lot brighter display, a much bigger display, a way better 1440 x 3200 resolution and a quite higher pixels amount in each inch of display.
Galaxy S21 Ultra has a bit faster CPU than Xiaomi Mi 6, and although they both have 8 cores, the Galaxy S21 Ultra also has a higher amount of RAM memory. The Galaxy S21 Ultra shoots greater photographs and videos than Xiaomi Mi 6, and although they both have the same aperture, the Galaxy S21 Ultra also has a much better video definition, a lot better 108 mega pixels resolution camera and a way bigger back-facing camera sensor taking way better quality videos and photographs.
Galaxy S21 Ultra has as much memory for games and applications as the Xiaomi Mi 6, they have the same 128 GB internal storage. The Samsung Galaxy S21 Ultra has a much longer battery performance than Xiaomi Mi 6, because it has a 49 percent larger battery size.
The Samsung Galaxy S21 Ultra is way more expensive than the Xiaomi Mi 6, but you can get a much better phone for that extra money.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.