Compare phones
| Global Score | |
| 85.5 | 76 |
| Basic Information | |
| Samsung | OnePlus |
| Android 11, 10 | Android 11 |
| 2019-12-27 | 2021-04-02 |
| 6.24 x 2.90 x 0.31 inches | 6.30 x 2.92 x 0.34 inches |
| 6.07 ounces | 6.77 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Arctic Sky, Astral Black and Winter Mist |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 700.00 |
| 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 |
| No touch screen | No touch screen |
| 8.1 | 8.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 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 | 23.00mm focal length |
| 0.5 inches (1/2") sensor | 0.71 inches (1/1.4") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.55 | 12.65 |
| 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 |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| 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 Galaxy A51 has a score of 85.5, which is better than OnePlus 9's 76 general score. These phones come with the same Android 11 operating system. The Galaxy A51 is an older phone than the OnePlus 9, but Samsung made it just a little bit thinner and somewhat lighter. OnePlus 9 counts with just a bit better looking screen than Samsung Galaxy A51. They have a screen with the same size, a greater pixel count in each inch in the screen and exactly the same 1080 x 2400 resolution.
The OnePlus 9 counts with just a little better hardware performance than Galaxy A51, and although they both have a Octa-Core processing unit, the OnePlus 9 also has a higher amount of RAM. The OnePlus 9 features a little bit better camera than Samsung Galaxy A51, and although they both have a 48 mega pixels back-facing camera, the OnePlus 9 also has a much larger sensor providing a lot better image quality, a larger diafragm aperture for better low-light photography and a lot better video quality.
The Samsung Galaxy A51 features a very superior memory capacity for applications, games, photos and videos than OnePlus 9, and although they both have exactly the same internal storage capacity, the Samsung Galaxy A51 also has a slot for an external memory card that holds up to 512 GB. The OnePlus 9 has a bit longer battery life than Samsung Galaxy A51, because it has 4500mAh of battery capacity.
The Galaxy A51 is not only the best devices of the ones we are comparing here, but it's also a lot cheaper.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.