Compare phones
| Global Score | |
| 76 | 84.1 |
| Basic Information | |
| OnePlus | Samsung |
| -- | Android 11, 10 |
| 2020-04-21 | 2020-03-23 |
| 6.31 x 2.87 x 0.31 inches | 6.26 x 2.96 x 0.35 inches |
| 6.35 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 |
| $ 330.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| 1100 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9 | 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 |
| 0.5 inches (1/2") 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 |
| 11.88 | 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 | |
| 4300mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.16 | 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 much better than OnePlus 8's overall score of 76. Galaxy M21 is a somewhat thicker and a little heavier device than OnePlus 8. OnePlus 8 counts with a slightly better looking display than Galaxy M21, because it has a quite larger display, a slightly higher 1080 x 2400 resolution, a just a bit greater display density and a much brighter screen.
The OnePlus 8 features a bit more powerful processor than Samsung Galaxy M21, and although they both have 8 processing cores, the OnePlus 8 also has a larger amount of RAM memory. Samsung Galaxy M21 counts with more storage capacity for games and applications than OnePlus 8, because although it has only 64 GB internal memory, it also counts with a SD memory slot that supports a maximum of 512 GB.
Galaxy M21 counts with a way better battery duration than OnePlus 8, because it has 6000mAh of battery capacity against 4300mAh. OnePlus 8 takes a bit better photos and videos than Samsung Galaxy M21, and although they both have the same camera sensor size, a same resolution back-facing camera and the same (4K) video quality, the OnePlus 8 also has faster video frame rates and a bigger aperture for better photos in low light situations.
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