Compare phones
| Global Score | |
| 85.5 | 76 |
| Basic Information | |
| Samsung | OnePlus |
| Android 11, 10 | -- |
| 2019-12-27 | 2020-04-21 |
| 6.24 x 2.90 x 0.31 inches | 6.31 x 2.87 x 0.31 inches |
| 6.07 ounces | 6.35 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Glacial green |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 330.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 405 pixels per inch |
| -- | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 865 SM8250 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 650 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 25.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.55 | 11.88 |
| 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4300mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.16 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy A51 is better than OnePlus 8, getting a score of 85.5 against 76. Samsung Galaxy A51's construction has the same thickness than OnePlus 8, but it's just a bit lighter. OnePlus 8 counts with a much better looking screen than Galaxy A51. They have the same screen pixel density, a display with the same size and an equal 1080 x 2400px resolution.
OnePlus 8 has just a little better performance than Galaxy A51, and although they both have the same number of cores, the OnePlus 8 also has more RAM memory. Galaxy A51 counts with a very superior storage for applications, games, photos and videos than OnePlus 8, and although they both have exactly the same 128 GB internal storage capacity, the Galaxy A51 also has a slot for an SD memory card that holds up to 512 GB.
The OnePlus 8 has a bit superior battery lifetime than Galaxy A51, because it has 4300mAh of battery capacity against 4000mAh. The OnePlus 8 counts with just a bit better camera than Samsung Galaxy A51, and although they both have a same size sensor, the same resolution back facing camera and the same (4K) video definition, the OnePlus 8 also has higher 60 fps video frame rates and a larger aperture to take better captures and video in low light situations.
Even being the best phone in our current comparison, Galaxy A51 is also the cheapest.
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