Compare phones
| Global Score | |
| 73.9 | 91.8 |
| Basic Information | |
| Oppo | Samsung |
| Android 10, 9.0 Pie | Android 11 |
| 2019-10-18 | 2021-01-29 |
| 6.30 x 2.93 x 0.37 inches | 5.97 x 2.80 x 0.31 inches |
| 6.67 ounces | 6.03 ounces |
| Luminous black, Ocean blue and Sunset pink | Gray, Phantom pink, Violet and White |
| Aluminum and Glass (Corning Gorilla Glass 5) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.5 inches | 6.2 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 730G SM7150-AB chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 17.34 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 12.00 MP + 10.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (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 | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 5.92 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S21 has a general score of 91.8, which is a lot better than OPPO Reno2's 73.9 overall score. The Galaxy S21 is a newer device, and it is also thinner and a bit lighter than the OPPO Reno2. These devices have Android OS (operating system), but Galaxy S21 has a newer 11 version while OPPO Reno2 has Android 10, providing a couple nice extra features and some performance improvements.
The Samsung Galaxy S21 features a brighter display than OPPO Reno2, because although it has a little bit smaller display, and they both have exactly the same 1080 x 2400 pixels resolution, the Samsung Galaxy S21 also counts with a quite better number of pixels per screen inch. The OPPO Reno2 has a way bigger storage capacity to install games and applications than Galaxy S21, because it has an external memory slot that admits up to 512 GB and 256 GB internal storage capacity.
Galaxy S21 has a little faster processing unit than OPPO Reno2. Both of them have a Octa-Core processing unit and a 8 GB RAM. The OPPO Reno2 and the Galaxy S21 both feature quite similar battery performance. The OPPO Reno2 counts with a little bit better camera than Galaxy S21, because although it has a tinier sensor, and they both have the same video resolution, the OPPO Reno2 also counts with a back facing camera with a way higher resolution, higher 30 frames per second video frame rates and a bigger aperture to take better low light photography.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.