Compare phones
| Global Score | |
| 91.8 | 76 |
| Basic Information | |
| Samsung | OnePlus |
| Android 11 | Android 11 |
| 2021-01-29 | 2021-04-02 |
| 5.97 x 2.80 x 0.31 inches | 6.30 x 2.92 x 0.34 inches |
| 6.03 ounces | 6.77 ounces |
| Gray, Phantom pink, Violet and White | Arctic Sky, Astral Black and Winter Mist |
| Aluminum and Plastic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | $ 700.00 |
| Display / Screen | |
| 6.2 inches | 6.5 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 424 pixels per inch | 405 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.2 |
| 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 | 8 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.63 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.00 MP + 10.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.71 inches (1/1.4") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.78 | 12.65 |
| 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 | |
| 4000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy S21 has a score of 91.8, which is a lot better than OnePlus 9's 76 global score. Galaxy S21 is a a little thinner and lighter cellphone than OnePlus 9, even though both of them were released with only 2 months difference. Both devices in this comparison review come with the same Android 11 operating system.
Galaxy S21 has a brighter screen than OnePlus 9, because although it has a bit smaller display, and they both have the same resolution of 1080 x 2400, the Galaxy S21 also counts with a little more pixels per inch of screen. OnePlus 9 has a processor that is very similar to Galaxy S21's processor, both have 8 processing cores and a 8 GB RAM.
Galaxy S21 and OnePlus 9 have extremely similar memory capacity to store more apps and games, both of them have equal internal memory capacity. The OnePlus 9 counts with a little longer battery lifetime than Galaxy S21, because it has 4500mAh of battery capacity instead of 4000mAh. The OnePlus 9 takes better photographs and videos than Galaxy S21, and although they both have the same video definition and a F1.8 camera aperture, the OnePlus 9 also has a camera with lot more MP, better video frame rate and a lot bigger back-facing camera sensor shooting lot better quality videos and photographs.
Galaxy S21 is a bit more expensive than OnePlus 9, but it's still a great deal, as you can get a better phone for that extra money.
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