Compare phones
| Global Score | |
| 72 | 84.1 |
| Basic Information | |
| Oppo | Samsung |
| Android 10 | Android 11, 10 |
| 2020-03-03 | 2020-03-23 |
| 6.25 x 2.89 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.17 ounces | 6.63 ounces |
| Aurora blue, Midnight black and Sky white | Midnight blue and Raven black |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 403 pixels per inch |
| 1200 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.1 | 8.4 |
| Performance | |
| MediaTek Helio P95 chipset | Exynos 9611 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| PowerVR GM9446 GPU | Mali-G72 MP3 GPU |
| 9.27 | 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 | |
| 64.00 MP + 44.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.1 | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4025mAh Li - Polymer Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy M21 has an overall score of 84.1, which is much better than the OPPO Reno3 Pro's score of 72. Samsung Galaxy M21's design is just a little bit thicker and just a bit heavier than OPPO Reno3 Pro. These phones work with Android OS (operating system), but Samsung Galaxy M21 has a more recent 11 version and OPPO Reno3 Pro has Android 10 version, so it offers a couple nice extra features.
Samsung Galaxy M21's CPU is just as good as the processor in OPPO Reno3 Pro, and although the Samsung Galaxy M21 has a lower amount of RAM memory, they both have a Octa-Core processor. The OPPO Reno3 Pro features a slightly better screen than Galaxy M21, and although they both have a screen of the same size, the OPPO Reno3 Pro also has a way brighter display, a little better amount of pixels in each display inch and a little bit higher resolution of 1080 x 2400.
The OPPO Reno3 Pro captures clearer photographs and videos than Galaxy M21, and although they both have the same 3840x2160 video quality and the same video frame rates, the OPPO Reno3 Pro also has a lot more mega-pixels camera, a larger back-facing camera sensor which gives a better image and video quality and a larger aperture to capture better low light images and video.
The Galaxy M21 counts with more storage for apps and games than OPPO Reno3 Pro, because although it has just 64 GB internal storage, it also counts with an external memory card slot that holds up to 512 GB. Galaxy M21 has a really longer battery lifetime than OPPO Reno3 Pro, because it has a 49% more battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.