Compare phones
| Global Score | |
| 71.6 | 84.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-05-21 | 2020-03-23 |
| 6.21 x 2.94 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.42 ounces | 6.63 ounces |
| Mirror gray | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 319.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Exynos 9611 chipset |
| Kryo 485, 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 |
| 6 GB RAM | 4 GB RAM |
| Adreno 640 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/1.70 aperture | f/2.00 aperture |
| -- | 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 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | 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
Galaxy M21 is better than OnePlus 7, having a score of 84.1 against 71.6. Galaxy M21 is a newer phone than OnePlus 7, but it is just a bit thicker and a bit heavier. Both of these phones use the same Android 11 operating system, so both of them should provide you all the same operating system features.
The Galaxy M21 counts with a little sharper screen than OnePlus 7. Both have the same count of pixels in each inch of screen, a screen with the same size and the same exact 1080 x 2340 resolution. OnePlus 7 features a bit faster CPU than Galaxy M21, and although they both have a Octa-Core CPU, the OnePlus 7 also has a greater amount of RAM.
The OnePlus 7 shoots a bit better pictures and videos than Samsung Galaxy M21, and although they both have the same resolution camera in the back, the same (4K) video quality and a 0.5 inches sensor, the OnePlus 7 also has better video frame rate and a larger aperture to take better low light photos and videos.
The Samsung Galaxy M21 features a greater storage for applications and games than OnePlus 7, because although it has less internal memory, it also counts with a slot for SD memory cards that admits a maximum of 512 GB. The Samsung Galaxy M21 has a really longer battery lifetime than OnePlus 7, because it has 6000mAh of battery capacity against 3700mAh.
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