Compare phones
| Global Score | |
| 75.8 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2017-01-13 | 2020-04-29 |
| 5.75 x 2.81 x 0.31 inches | 6.26 x 2.90 x 0.34 inches |
| 5.61 ounces | 6.60 ounces |
| Black sky, Blue mist, Gold sand and Peach cloud | Prism cube black |
| Glass and Metal | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 424 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7880 chipset | Samsung Exynos 980 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP3 GPU | Mali-G76 MP5 GPU |
| 9 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 8.88 | 15.38 |
| Camera | |
| 16.00 MP + 16.00 MP | 48.00 MP + 32.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.24 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 5.5 | 10.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 6.32 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A51 5G is better than the Galaxy A5 (2017), getting a 90.8 score against 75.8. Even though the Samsung Galaxy A51 5G is way newer than Galaxy A5 (2017), it's a bit thicker and heavier. Galaxy A51 5G features a display that's just as good as the display in Samsung Galaxy A5 (2017), because although the Galaxy A51 5G has a just a little lower display pixels density, it also counts with a larger display and a little higher 1080 x 2400 resolution.
Galaxy A51 5G has a bit more powerful processing unit than Samsung Galaxy A5 (2017), and although they both have the same number of cores, the Galaxy A51 5G also has a larger amount of RAM memory. The Galaxy A51 5G has a much better memory to install applications and games than Galaxy A5 (2017), because it has 128 GB internal storage and an external SD slot that admits a maximum of 1000 GB.
The Galaxy A51 5G features a superior battery duration than Galaxy A5 (2017), because it has a 4500mAh battery size. The Galaxy A51 5G takes a lot better photographs and videos than Galaxy A5 (2017), because although it has a tinier aperture which is not good for shooting photographs and video in low-light situations, it also counts with a back-facing camera with way more megapixels and a lot better 3840x2160 (4K) video quality.
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