Compare phones
| Global Score | |
| 98.1 | 75.2 |
| 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 | -- |
| 6.8 | 5.04 |
| 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 98.1, which is much better than Xiaomi Mi 4's 75.2 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 much longer 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.
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