Compare phones
| Global Score | |
| 74.6 | 83.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | -- |
| -- | 2018-03-16 |
| 6.04 x 3.04 x 0.32 inches | 5.81 x 2.70 x 0.33 inches |
| 6.14 ounces | 5.75 ounces |
| 16 777 216 | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 158.00 |
| Display / Screen | |
| 5.5 inches | 5.8 inches |
| 1280 x 720 pixels (HD) | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 267 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.9 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| ARM Mali-G71 GPU | Adreno 630 GPU |
| 8.82 | 9.54 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 8.88 | 11.34 |
| Camera | |
| 13.00 MP + 8.00 MP | 12.00 MP + 8.00 MP |
| f/1.90 aperture | f/1.50 aperture |
| 27.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.02 | 10.23 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 3000mAh Li - Ion Battery |
| Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S9 is much better than the Galaxy J7 Duo, getting an 83.3 score against 74.6. Galaxy S9 is a just a little bit lighter but just a little thicker cellphone than Galaxy J7 Duo. Galaxy S9 has a bit better performance than Samsung Galaxy J7 Duo. Both of them have 8 cores and 4 GB of RAM memory.
Samsung Galaxy S9 has an incredibly better screen than Samsung Galaxy J7 Duo, because it has a lot better resolution of 1440 x 2960px, a little bit bigger display and a way higher count of pixels per inch of screen. Galaxy S9 shoots much clearer photographs and videos than Galaxy J7 Duo, because although it has a back camera with less mega-pixels, it also counts with a much higher 3840x2160 video resolution, a larger camera sensor which gives a higher photo and video quality and a much larger aperture to capture better images and videos in low-light situations.
The Galaxy S9 features a much bigger memory capacity for games and applications than Samsung Galaxy J7 Duo, because it has more internal memory and a SD memory slot that admits a maximum of 400 GB. The Samsung Galaxy J7 Duo and the Galaxy S9 count with really similar battery performance.
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