Compare phones
| Global Score | |
| 72.1 | 76.1 |
| Basic Information | |
| Oppo | Samsung |
| Android 10 | Android 10 |
| 2020-08-05 | 2020-06-29 |
| 6.31 x 2.88 x 0.30 inches | 6.61 x 3.02 x 0.32 inches |
| 5.68 ounces | 6.81 ounces |
| Silky white and Starry night | Black |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 270 pixels per inch |
| 1100 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | Mediatek Helio P35 chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 618 GPU | PowerVR GE8320 GPU |
| 9.36 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 48.00 MP + 32.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.66 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A21 is a bit better than OPPO Reno4 Pro, having a 76.1 score against 72.1. Although the Samsung Galaxy A21 is better than the OPPO Reno4 Pro, we must highlight that it is also somewhat heavier and just a little thicker. Both devices in this comparison review come with the same Android 10 OS (operating system).
The OPPO Reno4 Pro features a way better screen than Samsung Galaxy A21, and although they both have a display with the same size, the OPPO Reno4 Pro also has a lot higher resolution of 1080 x 2400 pixels and a better pixels number in each inch in the display. OPPO Reno4 Pro counts with a bit better processor than Galaxy A21, and although they both have a Octa-Core CPU, the OPPO Reno4 Pro also has a larger amount of RAM.
The OPPO Reno4 Pro counts with a bit more memory capacity to install applications and games than Galaxy A21, because although it has no external memory card slot, it also counts with more internal storage. OPPO Reno4 Pro counts with a much better camera than Samsung Galaxy A21, because it has a way larger sensor providing a lot better image quality, a larger diafragm aperture for better images and videos in low light environments, a lot better 3840x2160 video resolution and a camera in the back with a lot higher 48 megapixels resolution.
Galaxy A21 and OPPO Reno4 Pro count with extremely similar battery durations.
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