Compare phones
| Global Score | |
| 79.2 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-01-06 | 2020-04-29 |
| 5.87 x 2.78 x 0.33 inches | 6.26 x 2.90 x 0.34 inches |
| 6.07 ounces | 6.60 ounces |
| Black, Blue, Gold and Orchid grey | Prism cube black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 5.6 inches | 6.5 inches |
| 2220 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 441 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.3 | 8.1 |
| Performance | |
| Samsung Exynos 5 Octa 7885 chipset | Samsung Exynos 980 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G71 GPU | Mali-G76 MP5 GPU |
| 9.18 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 10.78 | 15.38 |
| Camera | |
| 16.00 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 |
| 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 | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 10.7 |
| Battery Life | |
| 3000mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | 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 much better than Galaxy A8 (2018), getting a 90.8 score against 79.2. Although the Samsung Galaxy A51 5G is newer than Galaxy A8 (2018), it is just a little bit heavier and just a bit thicker. Galaxy A8 (2018) features a bit sharper display than Samsung Galaxy A51 5G, because although it has a little smaller display and a little worse 1080 x 2220 pixels resolution, it also counts with a little greater screen density.
The Samsung Galaxy A51 5G has a much better memory to install applications and games than Samsung Galaxy A8 (2018), because it has a SD memory card expansion slot that holds a maximum of 1000 GB and 64 GB more internal memory capacity. The Samsung Galaxy A51 5G counts with a bit better processing power than Galaxy A8 (2018), and although they both have a Octa-Core CPU, the Samsung Galaxy A51 5G also has a larger amount of RAM memory.
The Galaxy A51 5G counts with a really longer battery performance than Samsung Galaxy A8 (2018), because it has a 50 percent bigger battery size. The Galaxy A51 5G takes way better pictures and videos than Samsung Galaxy A8 (2018), because although it has a tinier camera aperture, it also counts with a much better 48 megapixels resolution camera in the back and a much better video definition.
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