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