Compare phones
| Global Score | |
| 76 | 86.5 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11 | Android 11, 10 |
| 2021-04-02 | 2020-03-05 |
| 6.30 x 2.92 x 0.34 inches | 6.27 x 2.96 x 0.35 inches |
| 6.77 ounces | 6.74 ounces |
| Arctic Sky, Astral Black and Winter Mist | Black, Blue and Red |
| Aluminum and Glass (Corning Gorilla Glass) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Exynos 9611 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 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 660 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.36 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 23.00mm focal length | 26.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.65 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 7.52 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M31 has an overall score of 86.5, which is better than the OnePlus 9's 76 global score. Samsung Galaxy M31 is an older and just a little thicker cellphone than the OnePlus 9, but Samsung was able to build it just a little lighter anyway. Both of these phones have the same Android 11 OS (operating system).
The Samsung Galaxy M31 has a slightly better looking screen than OnePlus 9, although it has a little bit smaller screen, a just a bit worse screen density and a little worse resolution of 1080 x 2340 pixels. The OnePlus 9 features a bit superior CPU than Samsung Galaxy M31, and although they both have a Octa-Core processor, the OnePlus 9 also has more RAM memory.
The OnePlus 9 counts with a bit better camera than Galaxy M31, because although it has a back-facing camera with a lot lower resolution, and they both have a same size aperture, the OnePlus 9 also counts with a much better video definition and a bigger sensor which offers a higher image and video quality.
Samsung Galaxy M31 has more storage to store more apps and games than OnePlus 9, because although it has less internal memory capacity, it also counts with an external SD slot that holds up to 512 GB. The Galaxy M31 counts with improved battery life than OnePlus 9, because it has 6000mAh of battery capacity.
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