Compare phones
| Global Score | |
| 71.6 | 85.5 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-05-21 | 2019-12-27 |
| 6.21 x 2.94 x 0.32 inches | 6.24 x 2.90 x 0.31 inches |
| 6.42 ounces | 6.07 ounces |
| Mirror gray | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 319.00 | $ 282.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Samsung Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.88 | 11.55 |
| 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 |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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 A51 is better than the OnePlus 7, getting an 85.5 score against 71.6. These phones include the same Android 11 OS (Operating System), so you shouldn't perceive any difference regarding operating system features. Even when the Samsung Galaxy A51 and OnePlus 7 were only released 7 months apart, the Samsung Galaxy A51 is just a bit lighter and just a little bit thinner.
OnePlus 7 features a bit better processing unit than Samsung Galaxy A51, and although they both have a Octa-Core CPU, the OnePlus 7 also has a higher amount of RAM. The OnePlus 7 features just a bit better display than Galaxy A51, although it has a little lower display density, a little smaller display and a quite lower 1080 x 2340 resolution.
Galaxy A51 has a much greater storage for apps and games than OnePlus 7, and although they both have exactly the same internal storage capacity, the Galaxy A51 also has a slot for SD memory cards that allows a maximum of 512 GB. The OnePlus 7 captures a little bit better photos and videos than Galaxy A51, and although they both have the same sensor size, a back camera with a 48 megapixels resolution and the same video quality, the OnePlus 7 also has faster 60 fps video frame rate and a larger diafragm aperture to take better photos in low light environments.
The Galaxy A51 has just a bit longer battery performance than OnePlus 7, because it has a 4000mAh battery capacity against 3700mAh.
The Galaxy A51 is not only the best phones of the ones we compare here, but it's also a bit cheaper, which makes it a very good choice.
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