Compare phones
| Global Score | |
| 73.9 | 98.1 |
| 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 | 6.50 x 2.98 x 0.35 inches |
| 6.67 ounces | 8.04 ounces |
| Luminous black, Ocean blue and Sunset pink | Phantom black and Silver |
| Aluminum and Glass (Corning Gorilla Glass 5) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.5 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 405 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.8 |
| 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 | 12 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| 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 | 108.00 MP + 40.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") 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 | 13.75 |
| 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 | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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 Ultra has a general score of 98.1, which is much better than OPPO Reno2's global score of 73.9. These phones have Android operating system, but Galaxy S21 Ultra has a more recent 11 version and OPPO Reno2 has Android 10. Galaxy S21 Ultra's construction is newer and just a little thinner, but also heavier than the OPPO Reno2.
The Galaxy S21 Ultra counts with a way better looking display than OPPO Reno2, because it has a higher pixels amount in each inch of screen, a higher resolution of 1440 x 3200px and a quite bigger display. The Galaxy S21 Ultra has a bit faster processing unit than OPPO Reno2, and although they both have the same number of cores, the Galaxy S21 Ultra also has a larger amount of RAM memory.
OPPO Reno2 features a way bigger storage capacity for games and applications than Samsung Galaxy S21 Ultra, because it has a slot for external memory cards that allows up to 512 GB and 256 GB internal memory capacity. The Galaxy S21 Ultra captures much clearer videos and photos than OPPO Reno2, because although it has a smaller aperture which is not nice for low light captures, it also counts with a way bigger sensor taking more light and vivid colors, a much more mega pixels back camera and a much better 7680x4320 video quality.
The Samsung Galaxy S21 Ultra counts with greater battery lifetime than OPPO Reno2, because it has a 25 percent bigger battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.