Compare phones
| Global Score | |
| 73.9 | 84.1 |
| Basic Information | |
| Oppo | Samsung |
| Android 11 | Android 11, 10 |
| 2021-09-09 | 2020-03-23 |
| 6.17 x 2.84 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 6.42 ounces | 6.63 ounces |
| Aurora and Stellar Black | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 411 pixels per inch | 403 pixels per inch |
| 750 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.8 | 8.4 |
| Performance | |
| MediaTek Dimesnity 900 MT6877 (6 nm) chipset | Exynos 9611 chipset |
| Cortex-A78, 64-bit (Octa-Core 2400 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Mali-G68 MC4 GPU | Mali-G72 MP3 GPU |
| 9.45 | 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 + 32.00 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 |
| 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 |
| 11.44 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4300mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.16 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | 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
The Galaxy M21 has a score of 84.1, which is much better than the OPPO Reno6 5G's global score of 73.9. These phones work with the same Android 11 OS, so both should offer all the same operating system features. Although it's the best in this comparison review, it must be told that it's also an older, thicker and just a little bit heavier phone.
OPPO Reno6 5G features a bit better processing power than Galaxy M21, and although they both have the same number of cores, the OPPO Reno6 5G also has a greater amount of RAM. The OPPO Reno6 5G counts with just a bit better screen than Galaxy M21, and although they both have a display with the same size, the OPPO Reno6 5G also has a way brighter display, a quite better 1080 x 2400 pixels resolution and a bit more pixels per inch in the display.
Galaxy M21 counts with a bigger storage for apps and games than OPPO Reno6 5G, because although it has only 64 GB internal storage capacity, it also counts with an external SD slot that supports a maximum of 512 GB. Samsung Galaxy M21 shoots slightly better photographs and videos than OPPO Reno6 5G, although it has a lower (4K) video definition, a way less megapixels back camera and a tinier camera aperture which is not good for low light images.
The Samsung Galaxy M21 features a very superior battery life than OPPO Reno6 5G, because it has a 6000mAh battery size against 4300mAh.
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