| Global Score | |
| 87.4 | 76.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 10, 8.0 Oreo |
| 2015-04-11 | 2018-06-28 |
| 5.65 x 2.78 x 0.27 inches | 6.27 x 2.98 x 0.32 inches |
| 4.87 ounces | 6.24 ounces |
| Black, Blue, Gold and White | Black, Blue, Gold and Pink |
| Aluminium and Glass | Plastic |
| Scratch-Resistant Glass | -- |
| $ 252.00 | -- |
| Display / Screen | |
| 5.1 inches | 6 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 1480 x 720 pixels |
| Super AMOLED | Super AMOLED |
| 576 pixels per inch | 274 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 7.2 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 3 GB (1600 MHz) RAM | 4 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Adreno 506 GPU |
| 10.08 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 10.78 |
| Camera | |
| 16.00 MP + 5.00 MP | 16.00 MP + 16.00 MP |
| f/1.90 aperture | f/1.70 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.38 inches (1/2.6") 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 |
| 10.01 | 9.46 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 2550mAh Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.56 | 5.44 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer and Proximity Sensor |
| -- | FM Radio |
Galaxy S6 is better than the Galaxy J8, with a general score of 87.4 against 76.7. These phones work with Android operating system, but the Galaxy S6 has the older 5.0 version and Galaxy J8 has Android 10. Galaxy S6's design is a lot lighter and somewhat thinner than the Galaxy J8, despite of the fact that it was released many years before.
The Galaxy S6 features a much more vibrant display than Galaxy J8, because although it has a quite smaller screen, it also counts with a way better display pixel density and a lot higher resolution of 2560 x 1440. Galaxy J8 counts with a little bit more storage capacity for games and applications than Galaxy S6, because although it has only 64 GB internal storage capacity, it also counts with a slot for external memory cards that admits up to 256 GB.
The Samsung Galaxy S6 counts with a faster CPU than Samsung Galaxy J8, because although it has less RAM memory, and they both have a Octa-Core processing unit, the Samsung Galaxy S6 also counts with a 64 bits processing unit and an additional graphics processing unit. The Samsung Galaxy J8 features improved battery duration than Galaxy S6, because it has a 37 percent greater battery capacity.
The Samsung Galaxy S6 has a slightly better camera than Samsung Galaxy J8, because although it has a smaller diafragm aperture, and they both have the same resolution back-facing camera, the Samsung Galaxy S6 also counts with a bigger back camera sensor shooting better quality photos and a way better video resolution.
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