Compare phones
| Global Score | |
| 84.1 | 79.8 |
| Basic Information | |
| Samsung | OnePlus |
| Android 11, 10 | Android 10, 9.0 Pie |
| 2020-03-23 | 2019-05-30 |
| 6.26 x 2.96 x 0.35 inches | 6.40 x 2.99 x 0.35 inches |
| 6.63 ounces | 7.27 ounces |
| Midnight blue and Raven black | Almond, Mirror gray and Nebula blue |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 3120 x 1440 pixels |
| Super AMOLED | AMOLED |
| 403 pixels per inch | 513 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.7 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 855 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.27 | 9.72 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.60 aperture |
| 26.00mm focal length | 17.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") 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 | 11.99 |
| 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 |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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 OnePlus 7 Pro 5G, with an 84.1 score against 79.8. Galaxy M21 is a a bit lighter cellphone than OnePlus 7 Pro 5G, but both have the same thickness. These phones come with Android OS, but Galaxy M21 has newer 11 version while OnePlus 7 Pro 5G has Android 10, providing you a couple nice extra features and a performance increase.
The OnePlus 7 Pro 5G features a little more vivid screen than Galaxy M21, because it has a better pixels density, a higher resolution of 1440 x 3120px and a little bit larger screen. OnePlus 7 Pro 5G counts with a bit faster processing unit than Samsung Galaxy M21, and although they both have a Octa-Core processor, the OnePlus 7 Pro 5G also has more RAM memory.
OnePlus 7 Pro 5G counts with a better storage capacity to store more games and applications than Galaxy M21, because although it has no external SD slot, it also counts with 256 GB internal memory capacity. OnePlus 7 Pro 5G shoots a little bit better photos and videos than Samsung Galaxy M21, and although they both have the same video definition, a 48 mega-pixels back camera and a 0.5 inches sensor, the OnePlus 7 Pro 5G also has higher video frame rates and a bigger diafragm aperture.
The Galaxy M21 counts with a much better battery lifetime than OnePlus 7 Pro 5G, because it has a 6000mAh battery size.
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