Compare phones
| Global Score | |
| 81.1 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11 |
| 2020-05-05 | 2021-01-29 |
| 6.53 x 3.02 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 7.37 ounces | 8.04 ounces |
| Glacier white, Interstellar gray and Tropical green | Phantom black and Silver |
| Glass (Corning Gorilla Glass 5) and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 291.00 | $ 966.00 |
| Display / Screen | |
| 6.7 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 393 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 12 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.36 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 64.00 MP + 16.00 MP | 108.00 MP + 40.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.59 inches (1/1.7") 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 (960 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.1 | 13.75 |
| 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 | |
| 5020mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra is much better than the Xiaomi Redmi Note 9 Pro, with a overall score of 98.1 against 81.1. The Samsung Galaxy S21 Ultra is a a little bit heavier cellphone than Xiaomi Redmi Note 9 Pro, but both of them are 0.35inches thick. These phones come with Android OS (Operating System), but Samsung Galaxy S21 Ultra has the newer 11 version and Xiaomi Redmi Note 9 Pro has Android 10 version, so it provides the user some nice extra features.
Galaxy S21 Ultra counts with a bit better processing unit than Xiaomi Redmi Note 9 Pro, and although they both have 8 cpu cores, the Galaxy S21 Ultra also has a greater amount of RAM. The Samsung Galaxy S21 Ultra features an incredibly better display than Xiaomi Redmi Note 9 Pro, because it has a bit larger display, a higher count of pixels per screen inch and a higher resolution of 1440 x 3200.
The Galaxy S21 Ultra captures better photos and videos than Xiaomi Redmi Note 9 Pro, because it has a much bigger camera sensor capturing lot better quality videos and photographs, a much better video resolution, a much higher resolution camera and a larger camera aperture for better low-light photography.
The Xiaomi Redmi Note 9 Pro features a greater storage capacity to install applications and games or saving photos and videos than Galaxy S21 Ultra, because although it has just 64 GB internal storage, it also counts with a SD card slot that holds up to 512 GB. Galaxy S21 Ultra has a battery lifetime that is very similar to Xiaomi Redmi Note 9 Pro's battery life, although the Galaxy S21 Ultra has a 0% smaller battery size.
Although Galaxy S21 Ultra is a better device, it costs a lot more money than the Xiaomi Redmi Note 9 Pro, and it doesn't have such a good price and quality relation as the Xiaomi Redmi Note 9 Pro. If you want to save some dollars, you can buy the Xiaomi Redmi Note 9 Pro, letting go a few features and specs, but you will get the most out of your savings.
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