| Global Score | |
| 72.2 | 86.5 |
| Basic Information | |
| Oppo | Samsung |
| Android 8.1 Oreo | Android 11, 10 |
| 2018-07-25 | 2020-03-05 |
| 6.17 x 2.92 x 0.38 inches | 6.27 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.74 ounces |
| Blue and Red | Black, Blue and Red |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 630 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.36 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 16.00 MP + 25.00 MP | 64.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.12 | 12.1 |
| 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 |
| Micro SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3730mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 7.52 |
| Other Features | |
| Bluetooth 5.0, EDR | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Galaxy M31 is much better than the OPPO Find X, getting an 86.5 score against 72.2. These phones work with Android OS (operating system), but the Galaxy M31 has older 11 version while OPPO Find X has Android 8.1 Oreo version. Galaxy M31 is a newer and a little bit thinner phone than the OPPO Find X, although it's also a bit heavier.
The Galaxy M31 has a little bit better screen than OPPO Find X. They have the same exact 1080 x 2340px resolution, a display with the same size and the same pixel density. The OPPO Find X counts with a bigger memory capacity to store more games and applications than Galaxy M31, because although it has no external memory card slot, it also counts with 256 GB internal storage capacity.
OPPO Find X has a bit better processor than Galaxy M31, and although they both have a Octa-Core processor, the OPPO Find X also has more RAM memory. Samsung Galaxy M31 captures much better photos and videos than OPPO Find X, and although they both have the same 3840x2160 video quality and the same video frame rates, the Samsung Galaxy M31 also has a lot larger camera sensor capturing more light and vivid colors, a much higher 64 megapixels resolution back facing camera and a larger camera aperture.
Samsung Galaxy M31 counts with a very superior battery lifetime than OPPO Find X, because it has a 6000mAh battery size against 3730mAh.
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