Compare phones
| Global Score | |
| 76 | 85.5 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11 | Android 11, 10 |
| 2021-04-02 | 2019-12-27 |
| 6.30 x 2.92 x 0.34 inches | 6.24 x 2.90 x 0.31 inches |
| 6.77 ounces | 6.07 ounces |
| Arctic Sky, Astral Black and Winter Mist | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum and Glass (Corning Gorilla Glass) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 700.00 | $ 282.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 405 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Samsung 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 | 4 GB RAM |
| Adreno 660 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/1.80 aperture | f/2.00 aperture |
| 23.00mm focal length | 26.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.5 inches (1/2") 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 | 1280 x 720 (240 fps) (HD) slow motion video |
| 12.65 | 11.55 |
| 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 | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 5.92 |
| 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
Galaxy A51 has a score of 85.5, which is better than OnePlus 9's global score of 76. Although the Galaxy A51 is older than the OnePlus 9, it's construction is somewhat lighter and a little thinner. Both of these devices work with the same Android 11 OS (operating system), so you shouldn't notice any differences in that aspect.
The OnePlus 9 has a little better processing power than Samsung Galaxy A51, and although they both have the same number of cores, the OnePlus 9 also has more RAM memory. OnePlus 9 has a bit more vivid screen than Galaxy A51. Both of them have the same exact 1080 x 2400 pixels resolution, a display of the same size and the same screen density.
OnePlus 9 counts with just a bit better camera than Galaxy A51, and although they both have a same resolution camera in the back, the OnePlus 9 also has a lot larger camera sensor shooting way better quality videos and pictures, a lot higher 7680x4320 video quality and a larger aperture to capture better photos in low-light situations.
The Samsung Galaxy A51 has a lot bigger memory for apps and games than OnePlus 9, and although they both have the same internal storage, the Samsung Galaxy A51 also has a slot for SD memory cards that admits up to 512 GB. OnePlus 9 features just a little bit longer battery lifetime than Samsung Galaxy A51, because it has a 13% more battery size.
Even being the best phone in our current comparison, the Samsung Galaxy A51 is also very cheap compared to the other phones.
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