Compare phones
| Global Score | |
| 82.1 | 83.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | -- |
| 2018-08-27 | 2018-03-16 |
| 6.39 x 3.03 x 0.30 inches | 5.81 x 2.70 x 0.33 inches |
| 6.74 ounces | 5.75 ounces |
| Black and White | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Glass and Metal | Aluminum and Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| -- | $ 158.00 |
| Display / Screen | |
| 6.3 inches | 5.8 inches |
| 2220 x 1080 pixels | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 392 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.9 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Adreno 630 GPU |
| 9.27 | 9.54 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 11.34 | 11.34 |
| Camera | |
| 16.00 MP + 24.00 MP | 12.00 MP + 8.00 MP |
| f/1.70 aperture | f/1.50 aperture |
| 26.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.01 | 10.23 |
| 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 | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Li - Ion Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.68 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy S9 has an overall score of 83.3, which is just a bit better than the Galaxy A8 Star's 82.1 general score. Although Galaxy S9 and the Galaxy A8 Star were only released with a few months difference, the Galaxy S9 design is just a little thicker but also somewhat lighter. The Galaxy S9 has a bit more powerful CPU than Galaxy A8 Star, although it has less RAM memory, they both have the same number of cores.
Galaxy S9 counts with a brighter display than Galaxy A8 Star, because although it has a little bit smaller display, it also counts with a greater amount of pixels per display inch and a better 1440 x 2960 pixels resolution. Galaxy S9's memory to install applications and games or saving photos and videos is very similar to Galaxy A8 Star's one, both of them have a SD memory card expansion slot that allows a maximum of 400 GB and equal 64 GB internal memory.
Galaxy S9 has just a bit better camera than Galaxy A8 Star, because although it has a back camera with a much worse 12 mega-pixels resolution and a lower (4K) video quality, it also counts with a bigger back-facing camera sensor taking more light and vivid colors and a larger diafragm aperture for better photos and video in poorly lited environments.
The Samsung Galaxy A8 Star has superior battery duration than Galaxy S9, because it has a 3700mAh battery size against 3000mAh.
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