Compare phones
| Global Score | |
| 85.5 | 79.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2019-12-27 | 2018-01-06 |
| 6.24 x 2.90 x 0.31 inches | 5.87 x 2.78 x 0.33 inches |
| 6.07 ounces | 6.07 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Blue, Gold and Orchid grey |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 5.6 inches |
| 2400 x 1080 pixels | 2220 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 441 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.3 |
| Performance | |
| Samsung Exynos 9611 chipset | Samsung Exynos 5 Octa 7885 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-G71 GPU |
| 9.27 | 9.18 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 10.78 |
| Camera | |
| 48.00 MP + 32.00 MP | 16.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 11.55 | 9.24 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| 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 | FM Radio |
Comparison review
The Galaxy A51 is slightly better than the Samsung Galaxy A8 (2018), getting an 85.5 score against 79.2. Galaxy A51's construction weights the same than Samsung Galaxy A8 (2018), but it's a little bit thinner. The Galaxy A51 features a bit more powerful processor than Samsung Galaxy A8 (2018). They have the same number of cores and the same RAM memory amount.
The Galaxy A8 (2018) features a little sharper screen than Samsung Galaxy A51, because although it has a little worse resolution of 1080 x 2220px and a bit smaller screen, it also counts with a just a little greater display density. The Samsung Galaxy A51 counts with a way bigger storage capacity for apps and games than Samsung Galaxy A8 (2018), because it has 128 GB internal storage and an external memory slot that supports up to 512 GB.
The Galaxy A51 takes way better videos and photos than Galaxy A8 (2018), because although it has a tinier diafragm aperture, it also counts with a lot more MP back camera and a way better 3840x2160 (4K) video resolution. Samsung Galaxy A51 counts with improved battery life than Galaxy A8 (2018), because it has a 33% greater battery capacity.
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