Compare phones
| Global Score | |
| 76 | 98.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11 | Android 11 |
| 2021-04-02 | 2021-01-29 |
| 6.30 x 2.92 x 0.34 inches | 6.50 x 2.98 x 0.35 inches |
| 6.77 ounces | 8.04 ounces |
| Arctic Sky, Astral Black and Winter Mist | Phantom black and Silver |
| Aluminum and Glass (Corning Gorilla Glass) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.63 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 23.00mm focal length | 24.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.65 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 4500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| 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
Galaxy S21 Ultra is much better than the OnePlus 9, having a overall score of 98.1 against 76. Both of these phones have the same Android 11 operating system. Even being the best phone we are comparing here, we must highlight that it's also just a little thicker and somewhat heavier. The Samsung Galaxy S21 Ultra features a bit better CPU than OnePlus 9, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has 4 GB more RAM.
Galaxy S21 Ultra has a much better display than OnePlus 9, because it has a little bit bigger display, a higher resolution of 1440 x 3200px and a better pixel amount per inch in the display. Galaxy S21 Ultra has as much storage capacity for games and applications as OnePlus 9, both of them have the same internal storage capacity.
Samsung Galaxy S21 Ultra captures just a bit better photos and videos than OnePlus 9, because although it has lower video frame rates, and they both have a same size diafragm aperture and the same video resolution, the Samsung Galaxy S21 Ultra also counts with a bigger back-facing camera sensor capturing better quality photographs and a much higher 108 mega pixels resolution camera.
The Galaxy S21 Ultra features just a bit longer battery lifetime than OnePlus 9, because it has a 5000mAh battery size.
The Samsung Galaxy S21 Ultra costs more than the OnePlus 9, but you can get a much better phone for that few extra dollars.
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