Compare phones
| Global Score | |
| 85.5 | 76.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10, 8.0 Oreo |
| 2019-12-27 | 2018-06-28 |
| 6.24 x 2.90 x 0.31 inches | 6.27 x 2.98 x 0.32 inches |
| 6.07 ounces | 6.24 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Blue, Gold and Pink |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | -- |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 2400 x 1080 pixels | 1480 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 274 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 506 GPU |
| 9.27 | 8.91 |
| 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 | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") 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 | 9.46 |
| 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 | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.44 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A51 has a global score of 85.5, which is better than Samsung Galaxy J8's overall score of 76.7. Both of these phones have Android OS (Operating System), but the Galaxy A51 has a newer 11 version and Samsung Galaxy J8 has Android 10 version, providing you a couple nice extra features and performance improvements. Galaxy A51's construction is newer, just a little bit lighter and a little thinner than the Samsung Galaxy J8.
The Galaxy A51 counts with a brighter screen than Galaxy J8, because it has a better pixels density, a little bigger display and a much better resolution of 1080 x 2400px. The Samsung Galaxy A51 counts with a much better storage capacity to install applications and games than Galaxy J8, because it has a slot for an SD memory card that supports up to 512 GB and more internal storage capacity.
Galaxy A51 has a bit better hardware performance than Galaxy J8. Both have a Octa-Core CPU and a 4 GB RAM memory. Galaxy A51 features a very superior camera than Galaxy J8, because although it has a tinier diafragm aperture which is not recommended for shooting photos and video in low-light situations, it also counts with a back-facing camera with way more mega-pixels, a lot bigger back-facing camera sensor taking way better quality videos and photos and a way higher video resolution.
The Galaxy A51 has a bit superior battery lifetime than Galaxy J8, because it has 4000mAh of battery capacity instead of 3500mAh.
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