Compare phones
| Global Score | |
| 83.3 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-03-16 | 2020-04-29 |
| 5.81 x 2.70 x 0.33 inches | 6.26 x 2.90 x 0.34 inches |
| 5.75 ounces | 6.60 ounces |
| Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray | Prism cube black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 158.00 | $ 339.00 |
| Display / Screen | |
| 5.8 inches | 6.5 inches |
| 2960 x 1440 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 568 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.9 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Samsung Exynos 980 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 630 GPU | Mali-G76 MP5 GPU |
| 9.54 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 11.34 | 15.38 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.50 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.23 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A51 5G is a bit better than Galaxy S9, having a general score of 90.8 against 83.3. Samsung Galaxy A51 5G's body is extremely newer, but a little thicker and heavier than the Galaxy S9. The Galaxy S9 counts with a bit sharper screen than Galaxy A51 5G, because although it has a bit smaller display, it also counts with more pixels per inch in the display and a better 1440 x 2960px resolution.
The Samsung Galaxy A51 5G features a very superior memory for applications and games than Samsung Galaxy S9, because it has a SD card slot that holds up to 1000 GB and 64 GB more internal memory capacity. Samsung Galaxy S9 features a bit better processing unit than Galaxy A51 5G, although it has a smaller amount of RAM, they both have 8 CPU cores.
The Galaxy A51 5G has a way better battery duration than Galaxy S9, because it has a 4500mAh battery capacity. Samsung Galaxy A51 5G captures much clearer pictures and videos than Galaxy S9, because although it has lower video frame rate and a way smaller camera aperture which is not recommended for capturing photos and videos in low light environments, and they both have the same video definition, the Samsung Galaxy A51 5G also counts with a much more megapixels camera and a much larger back-facing camera sensor which offers a lot higher photo and video quality.
Although Samsung Galaxy A51 5G is a better device, it is way more expensive than the Galaxy S9, and it doesn't have such a good price and quality relation as the Galaxy S9. So if you want that extra specs, you can buy the Samsung Galaxy A51 5G, otherwise you can save some money and buy the Galaxy S9, letting go a couple features and specifications.
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