Compare phones
| Global Score | |
| 77.2 | 84.1 |
| Basic Information | |
| OnePlus | Samsung |
| -- | Android 11, 10 |
| 2020-04-21 | 2020-03-23 |
| 6.51 x 2.93 x 0.33 inches | 6.26 x 2.96 x 0.35 inches |
| 7.02 ounces | 6.63 ounces |
| Glacial green | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 747.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.4 inches |
| 3168 x 1440 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 512 pixels per inch | 403 pixels per inch |
| 1300 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 865 SM8250 chipset | Exynos 9611 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 650 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 25.00mm focal length | 26.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.21 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4510mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.4 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 has a global score of 84.1, which is slightly better than OnePlus 8 Pro's 77.2 general score. Even though Galaxy M21 and the OnePlus 8 Pro were released only 1 months apart, Galaxy M21's design is just a bit lighter but a bit thicker. OnePlus 8 Pro features a little bit better processing power than Galaxy M21, and although they both have the same number of cores, the OnePlus 8 Pro also has 4 GB more RAM memory.
OnePlus 8 Pro features a much better looking screen than Samsung Galaxy M21, because it has a better 1440 x 3168 resolution, a little bit bigger screen, a higher amount of pixels per inch of display and much more screen brightness. The OnePlus 8 Pro shoots a little bit better videos and photos than Galaxy M21, and although they both have a camera with a 48 megapixels and the same (4K) video definition, the OnePlus 8 Pro also has a bigger aperture for better low light photos and video, better 60 fps video frame rate and a way larger sensor providing a lot higher image quality.
Galaxy M21 has a bigger storage for apps and games than OnePlus 8 Pro, because although it has only 64 GB internal memory, it also counts with an external memory card slot that allows up to 512 GB. Samsung Galaxy M21 features superior battery lifetime than OnePlus 8 Pro, because it has a 33 percent larger battery size.
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