Compare phones
| Global Score | |
| 73.9 | 84.1 |
| Basic Information | |
| Oppo | Samsung |
| -- | Android 11, 10 |
| 2019-06-12 | 2020-03-23 |
| 6.38 x 3.04 x 0.37 inches | 6.26 x 2.96 x 0.35 inches |
| 7.58 ounces | 6.63 ounces |
| Black and Green | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.6 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 390 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 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 |
| 8 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm 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 |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.77 | 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 | |
| 4065mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 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
Samsung Galaxy M21 has a global score of 84.1, which is much better than OPPO Reno 10x Zoom's 73.9 global score. Samsung Galaxy M21's construction is newer, a little bit thinner and somewhat lighter than OPPO Reno 10x Zoom. The Samsung Galaxy M21 counts with a bit better looking screen than OPPO Reno 10x Zoom, because although it has a little bit smaller screen, and they both have an equal 1080 x 2340px resolution, the Samsung Galaxy M21 also counts with a just a bit greater pixels density.
The OPPO Reno 10x Zoom has a better storage capacity to install applications and games than Galaxy M21, because although it has no slot for an SD memory card, it also counts with more internal storage capacity. The OPPO Reno 10x Zoom has a bit better processing unit than Galaxy M21, and although they both have 8 CPU cores, the OPPO Reno 10x Zoom also has a larger amount of RAM.
The Samsung Galaxy M21 features a very superior battery life than OPPO Reno 10x Zoom, because it has a 48 percent more battery capacity. The OPPO Reno 10x Zoom counts with a slightly better camera than Galaxy M21, and although they both have the same camera sensor size, the same 3840x2160 (4K) video resolution and a same resolution camera in the back, the OPPO Reno 10x Zoom also has a bigger aperture to take better photography and video in low light situations and higher 60 fps video frame rates.
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