Compare phones
| Global Score | |
| 85.5 | 81.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2019-12-27 | 2017-04-21 |
| 6.24 x 2.90 x 0.31 inches | 5.86 x 2.68 x 0.31 inches |
| 6.07 ounces | 5.47 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Arctic silver, Burgundy red, Coral blue, Maple gold, Midnight black, Orchid gray and Rose pink |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 173.00 |
| Display / Screen | |
| 6.5 inches | 5.8 inches |
| 2400 x 1080 pixels | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.9 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 835 MSM8998 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 280, 64-bit, 10 nm (Octa-Core 2350 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 540 GPU |
| 9.27 | 9.27 |
| 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 | 12.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0, EDR |
| 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 just a bit better than the Samsung Galaxy S8, with a general score of 85.5 against 81.7. The Galaxy A51 design has the same thickness than the Samsung Galaxy S8, but it is just a little bit heavier. Galaxy S8 features a processing unit that's just as good as Samsung Galaxy A51's processor, both of them have the same number of cores and a 4 GB RAM.
The Galaxy S8 counts with a little more vivid display than Galaxy A51, because although it has a little smaller display, it also counts with a better 1440 x 2960 pixels resolution and more pixels per screen inch. The Galaxy A51 counts with a superior camera than Samsung Galaxy S8, because although it has a smaller camera aperture which is not favorable for taking photos and/or video in low light environments, and they both have the same 30 frames per second video frame rates and the same 3840x2160 (4K) video quality, the Galaxy A51 also counts with a way larger camera sensor providing a way better image quality and a lot more megapixels back facing camera.
Galaxy A51 features a much greater storage capacity for applications and games than Samsung Galaxy S8, because it has 128 GB internal storage capacity and a SD card slot that admits a maximum of 512 GB. The Samsung Galaxy A51 has superior battery duration than Galaxy S8, because it has a 4000mAh battery size.
Although Galaxy A51 is a better device, it costs a lot more money than Galaxy S8, and it doesn't have such a good price and quality relation as the Galaxy S8. So if you want that extra specs, you can buy the Galaxy A51, else you can save some money and buy the Galaxy S8, resigning a couple features and specs.
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