Compare phones
| Global Score | |
| 81.3 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 14 | Android 11 |
| 2024-10-29 | 2021-01-29 |
| 6.35 x 2.96 x 0.33 inches | 6.50 x 2.98 x 0.35 inches |
| 7.51 ounces | 8.04 ounces |
| -- | Phantom black and Silver |
| Glass | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| 3200 x 1440 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 516 pixels per inch | 516 pixels per inch |
| 3500 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 10.6 | 9.8 |
| Performance | |
| Snapdragon 8 Elite SM8750-AB (3 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 830 GPU | Adreno 660 GPU |
| 6.21 | 9.72 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| f/1.40 aperture | f/1.80 aperture |
| 23.00mm focal length | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.99 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 7 | 10.7 |
| Battery Life | |
| 6100mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 7.6 | 6.8 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass and Gyroscope | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra has an overall score of 98.1, which is much better than Xiaomi 15 Pro's 81.3 score. Both of these devices have Android OS (operating system), but Samsung Galaxy S21 Ultra has older 11 version while Xiaomi 15 Pro has Android 14 version. Samsung Galaxy S21 Ultra is a older, just a little bit heavier and just a little thicker phone than Xiaomi 15 Pro.
The Xiaomi 15 Pro counts with a bit better looking display than Galaxy S21 Ultra, and although they both have exactly the same resolution of 1440 x 3200 pixels, a greater amount of pixels per inch of display and a display of the same size, the Xiaomi 15 Pro also has a much brighter screen. Galaxy S21 Ultra counts with a way better hardware performance than Xiaomi 15 Pro. They have a 12 GB RAM memory and a Octa-Core processing unit.
Xiaomi 15 Pro has much more memory capacity to store more apps and games than Samsung Galaxy S21 Ultra, because it has 128 GB more internal storage. Xiaomi 15 Pro counts with greater battery performance than Galaxy S21 Ultra, because it has a 22% larger battery size. The Galaxy S21 Ultra shoots much better videos and photos than Xiaomi 15 Pro, because although it has a much smaller camera aperture, and they both have the same 24 fps video frame rates and the same video quality, the Galaxy S21 Ultra also counts with a back-facing camera with a way higher resolution.
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