Compare phones
| Global Score | |
| 81.9 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2017-08-11 | 2019-12-27 |
| 5.99 x 2.95 x 0.39 inches | 6.24 x 2.90 x 0.31 inches |
| 7.34 ounces | 6.07 ounces |
| Gold and Gray | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 245.00 | $ 282.00 |
| Display / Screen | |
| 5.8 inches | 6.5 inches |
| 2960 x 1440 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 568 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.9 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Samsung Exynos 9611 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2350 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 540 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 14.14 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.5 inches (1/2") 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 |
| 9.79 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 4000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.1, EDR | 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 |
Comparison review
The Galaxy A51 is slightly better than the Samsung Galaxy S8 Active, having an 85.5 score against 81.9. The Galaxy A51 is a notably newer phone, and it's also somewhat lighter and way thinner than the Samsung Galaxy S8 Active. Galaxy S8 Active counts with a little sharper display than Samsung Galaxy A51, because although it has a quite smaller display, it also counts with a higher resolution of 1440 x 2960px and a higher quantity of pixels per inch in the screen.
Galaxy A51 has a much bigger storage capacity to store more apps and games than Galaxy S8 Active, because it has more internal storage capacity and an external memory slot that admits up to 512 GB. The Galaxy A51 features a processing unit that's very similar to the Galaxy S8 Active one, both have 4 GB of RAM and 8 processing cores.
Galaxy A51 takes better photos and videos than Galaxy S8 Active, because although it has a tinier aperture which is not favorable for low light captures and video, and they both have the same 3840x2160 (4K) video definition and the same 30 frames per second video frame rates, the Galaxy A51 also counts with a way bigger camera sensor providing a much better image quality and a back-facing camera with lot more megapixels.
The Galaxy S8 Active and the Samsung Galaxy A51 have quite similar batteries.
The Galaxy A51 costs more than Samsung Galaxy S8 Active, but you can get a better phone for that few more dollars.
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