Compare phones
| Global Score | |
| 91.8 | 81.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 14 |
| 2021-01-29 | 2024-10-29 |
| 5.97 x 2.80 x 0.31 inches | 6.35 x 2.96 x 0.33 inches |
| 6.03 ounces | 7.51 ounces |
| Gray, Phantom pink, Violet and White | -- |
| Aluminum and Plastic | Glass |
| Scratch-Resistant Glass | -- |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| Dynamic AMOLED | AMOLED |
| 424 pixels per inch | 516 pixels per inch |
| 1300 cd/m2 brightness | 3500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 10.6 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 830 GPU |
| 9.63 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 12.00 MP + 10.00 MP | 50.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.40 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.57 inches (1/1.76") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.78 | 11.99 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G |
| Nano SIM | Nano SIM |
| 10.7 | 7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 6100mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.92 | 7.6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| 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 and Gyroscope |
| FM Radio | -- |
Comparison review
The Samsung Galaxy S21 is better than the Xiaomi 15 Pro, having a score of 91.8 against 81.3. Both of these phones have Android OS (Operating System), but Samsung Galaxy S21 has older 11 version while Xiaomi 15 Pro has Android 14. Even though the Samsung Galaxy S21 is noticeably older than the Xiaomi 15 Pro, it's design is a little bit thinner and somewhat lighter.
Galaxy S21 features a much better performing processing unit than Xiaomi 15 Pro, although it has a lower amount of RAM, they both have 8 CPU cores. The Xiaomi 15 Pro counts with a sharper display than Galaxy S21, because it has a quite bigger display, a bit higher pixel amount per inch of screen, much more brightness and a higher 1440 x 3200 pixels resolution.
The Xiaomi 15 Pro has a much greater memory for applications and games than Galaxy S21, because it has more internal storage capacity. Xiaomi 15 Pro features a superior camera than Galaxy S21, and although they both have the same video frame rate and the same 7680x4320 video resolution, the Xiaomi 15 Pro also has a back-facing camera with a much higher resolution and a much bigger aperture to take better photos and videos in poorly lited situations.
Xiaomi 15 Pro has a really longer battery life than Samsung Galaxy S21, because it has 6100mAh of battery capacity.
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