Compare phones
| Global Score | |
| 85.5 | 82.9 |
| Basic Information | |
| Samsung | |
| Android 11, 10 | Android 11, 10 |
| 2019-12-27 | 2020-08-20 |
| 6.24 x 2.90 x 0.31 inches | 5.67 x 2.73 x 0.32 inches |
| 6.07 ounces | 5.04 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Just black |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 349.00 |
| Display / Screen | |
| 6.5 inches | 5.8 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | OLED |
| 405 pixels per inch | 444 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.3 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 730G SM7150-AA chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 618 GPU |
| 9.27 | 9.27 |
| 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 | 12.20 MP + 8.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.55 | 9.79 |
| 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 | |
| 4000mAh Li - Polymer Battery | 3140mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.12 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy A51 is slightly better than Google Pixel 4a, having a general score of 85.5 against 82.9. These phones work with the same Android 11 OS (operating system), so they should offer very similar operating system features. Even though the Galaxy A51 and the Google Pixel 4a were released with only a few months difference, Galaxy A51's body is just a bit thinner but also heavier than the Google Pixel 4a.
Google Pixel 4a has a bit more vivid display than Samsung Galaxy A51, because although it has a bit worse 1080 x 2340 resolution and a little bit smaller screen, it also counts with a little bit higher pixel density. The Google Pixel 4a counts with a CPU that is just as good as the Samsung Galaxy A51 one, and although the Google Pixel 4a has more RAM, they both have the same number of cores.
The Galaxy A51 takes much better photos and videos than Google Pixel 4a, because although it has a smaller camera aperture which is not nice for low light photos, and they both have the same 3840x2160 (4K) video quality and the same video frame rate, the Galaxy A51 also counts with a back camera with lot more mega-pixels and a way bigger back-facing camera sensor.
The Samsung Galaxy A51 features a much better memory capacity to install applications and games or saving photos and videos than Google Pixel 4a, and although they both have exactly the same 128 GB internal storage, the Samsung Galaxy A51 also has a SD memory card expansion slot that allows a maximum of 512 GB.
The Galaxy A51 has longer battery lifetime than Google Pixel 4a, because it has a 27 percent larger battery capacity.
Samsung Galaxy A51 is not only the best phones of the ones we are comparing, but it's also a bargain compared to others, which makes it very easy to pick between these phones.
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