Compare phones
| Global Score | |
| 79.6 | 83.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | -- |
| 2019-04-10 | 2018-03-16 |
| 5.69 x 2.72 x 0.31 inches | 5.81 x 2.70 x 0.33 inches |
| 4.94 ounces | 5.75 ounces |
| Black, Blue, Coral and White | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 158.00 |
| Display / Screen | |
| 5.9 inches | 5.8 inches |
| 2340 x 1080 pixels | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 437 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.9 |
| Performance | |
| Exynos 7904 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G71 MP2 GPU | Adreno 630 GPU |
| 8.91 | 9.54 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 11.74 | 11.34 |
| Camera | |
| 16.00 MP + 25.00 MP | 12.00 MP + 8.00 MP |
| f/1.70 aperture | f/1.50 aperture |
| 27.00mm focal length | -- |
| 0.36 inches (1/2.8") 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 |
| 9.46 | 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, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3100mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.12 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S9 has a general score of 83.3, which is slightly better than Galaxy A40's 79.6 score. Despite being the best device in this review, the Galaxy S9 design is older, heavier and a little thicker than Galaxy A40. Galaxy S9 counts with a bit more vivid screen than Galaxy A40, because although it has a little smaller screen, it also counts with a better 1440 x 2960 pixels resolution and more pixels per inch in the screen.
The Galaxy A40 has a bit bigger memory for games and applications than Samsung Galaxy S9, and although they both have exactly the same internal memory, the Galaxy A40 also has a slot for SD memory cards that allows up to 512 GB. The Galaxy S9 features a little better processing power than Galaxy A40. Both of them have 4 GB of RAM and a Octa-Core processing unit.
Galaxy A40 counts with just a little bit longer battery lifetime than Galaxy S9, because it has 3100mAh of battery capacity. Galaxy S9 has a slightly better camera than Galaxy A40, because although it has a camera in the back with lot less mega-pixels resolution, it also counts with a much higher video definition, a larger aperture and a larger sensor capturing more light and vivid colors.
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