| Global Score | |
| 72.2 | 98.1 |
| Basic Information | |
| Oppo | Samsung |
| Android 8.1 Oreo | Android 11 |
| 2018-07-25 | 2021-01-29 |
| 6.17 x 2.92 x 0.38 inches | 6.50 x 2.98 x 0.35 inches |
| 6.56 ounces | 8.04 ounces |
| Blue and Red | Phantom black and Silver |
| Aluminum and Glass | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 403 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 630 GPU | Adreno 660 GPU |
| 9.63 | 9.72 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 16.00 MP + 25.00 MP | 108.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.12 | 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 |
| Micro SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3730mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.68 | 6.8 |
| Other Features | |
| Bluetooth 5.0, EDR | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Galaxy S21 Ultra is much better than OPPO Find X, with a score of 98.1 against 72.2. Even though the Galaxy S21 Ultra is somewhat heavier than OPPO Find X, it's just a little bit thinner and also way newer. Both of these phones have Android OS, but Galaxy S21 Ultra has the previous 11 version while OPPO Find X has Android 8.1 Oreo version.
Samsung Galaxy S21 Ultra has a sharper display than OPPO Find X, because it has a bit bigger screen, more pixels per inch of display and a higher 1440 x 3200px resolution. The OPPO Find X has a much bigger memory for applications and games than Samsung Galaxy S21 Ultra, because it has 256 GB internal memory capacity.
Samsung Galaxy S21 Ultra has a bit better hardware performance than OPPO Find X, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a higher amount of RAM memory. Samsung Galaxy S21 Ultra captures greater pictures and videos than OPPO Find X, because it has a lot bigger sensor shooting way better quality pictures and videos, a way higher 108 megapixels resolution back facing camera, a much higher 7680x4320 video definition and a larger aperture to capture better low light photos and videos.
The Samsung Galaxy S21 Ultra has improved battery lifetime than OPPO Find X, because it has a 5000mAh battery capacity.
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