Compare phones
| Global Score | |
| 72.8 | 77.7 |
| Basic Information | |
| Oppo | Samsung |
| Android 9.0 Pie | Android 10 |
| 2019-06-05 | 2020-06-19 |
| 6.17 x 2.93 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 6.53 ounces | 6.77 ounces |
| Black and Green | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 403 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 710 SDM710 chipset | Samsung Exynos 850 chipset |
| Kryo 360, 64-bit, 10 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 616 GPU | Mali-G76 GPU |
| 9.27 | 9.09 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | -- |
| 11.55 | 10.78 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3765mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
The Samsung Galaxy A21s is a bit better than the OPPO Reno, having a 77.7 score against 72.8. Samsung Galaxy A21s's body has the same thickness than OPPO Reno, but it's a bit heavier. Both of these phones have Android operating system, but the Samsung Galaxy A21s has older 10 version while OPPO Reno has Android 9.0 Pie version.
The OPPO Reno features a bit superior processor than Samsung Galaxy A21s, and although they both have 8 processing cores, the OPPO Reno also has 5 GB more RAM. The OPPO Reno features a better screen than Galaxy A21s, because although it has a bit smaller screen, it also counts with a better pixels count per inch of display and a lot higher resolution of 1080 x 2340.
The OPPO Reno has a much greater memory capacity for games and applications than Samsung Galaxy A21s, because although it has no slot for external memory cards, it also counts with 256 GB internal memory capacity. Galaxy A21s counts with improved battery lifetime than OPPO Reno, because it has a 33 percent larger battery size.
OPPO Reno has just a bit better camera than Samsung Galaxy A21s, and although they both have a same size sensor and the same resolution back-facing camera, the OPPO Reno also has a lot higher (4K) video resolution and a bigger aperture to capture better low light captures and videos.
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