Compare phones
| Global Score | |
| 11.67 | 9 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 4.4.3 |
| 2021-01-29 | 2014-07-22 |
| 6.50 x 2.98 x 0.35 inches | 5.48 x 2.70 x 0.35 inches |
| 8.04 ounces | 5.26 ounces |
| Phantom black and Silver | Black and White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | $ 329.00 |
| Display / Screen | |
| 6.8 inches | 5 inches |
| 3200 x 1440 pixels | 1080 x 1920 pixels (Full HD) |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 441 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | Capacitive, Multi-touch |
| 9.8 | 9.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 801 8974-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Qualcomm Krait 400 (Quad-Core 2500 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Adreno 660 GPU | Adreno 330 (450 MHz) GPU |
| 9.72 | 9.36 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 7.7 |
| Camera | |
| 108.00 MP + 40.00 MP | 13.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | 0.33 inches (1/3.06") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (60 fps) (Full HD) slow motion video |
| 13.75 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM | SIM |
| 10.7 | 7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3080mAh Li-Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 4.64 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | -- |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy S21 Ultra has a score of 11.67, which is much better than Xiaomi Mi 4's 9 overall score. These devices use Android OS, but the Samsung Galaxy S21 Ultra has the older 11 version and Xiaomi Mi 4 has Android 4.4.3 version. Samsung Galaxy S21 Ultra is a heavier device than Xiaomi Mi 4, but they have the same thickness.
Samsung Galaxy S21 Ultra features just a little better hardware performance than Xiaomi Mi 4, because although it has doesn't have an additional graphics processing unit, it also counts with 4 more cores and a larger amount of RAM. Samsung Galaxy S21 Ultra features a little bit better looking display than Xiaomi Mi 4, because it has a lot higher resolution of 1440 x 3200px, a quite higher pixels count in each inch of display and a way bigger screen.
The Samsung Galaxy S21 Ultra has a much better camera than Xiaomi Mi 4, and although they both have a F1.8 aperture, the Samsung Galaxy S21 Ultra also has a way higher 7680x4320 video definition, a lot higher resolution camera in the back and a much larger sensor which offers a much higher photo and video quality.
The Galaxy S21 Ultra features a much better storage capacity to store more games and applications than Xiaomi Mi 4, because it has 128 GB internal memory. Galaxy S21 Ultra has a bit superior battery life than Xiaomi Mi 4, because it has a 5000mAh battery capacity.
The Samsung Galaxy S21 Ultra costs a lot more money than the Xiaomi Mi 4, but it's still a great deal, as you can get a lot more features for that extra money.