Compare phones
| Global Score | |
| 90.8 | 83.3 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2020-04-29 | 2018-03-16 |
| 6.26 x 2.90 x 0.34 inches | 5.81 x 2.70 x 0.33 inches |
| 6.60 ounces | 5.75 ounces |
| Prism cube black | Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray |
| Aluminum and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | $ 158.00 |
| Display / Screen | |
| 6.5 inches | 5.8 inches |
| 2400 x 1080 pixels | 2960 x 1440 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.9 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Mali-G76 MP5 GPU | Adreno 630 GPU |
| 9.27 | 9.54 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 15.38 | 11.34 |
| Camera | |
| 48.00 MP + 32.00 MP | 12.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.50 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") 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 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.55 | 10.23 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 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 A51 5G is a little bit better than the Samsung Galaxy S9, with a 90.8 score against 83.3. Galaxy A51 5G is a a lot newer phone than Samsung Galaxy S9, although it is heavier and a little thicker. The Galaxy S9 counts with a bit superior processing unit than Galaxy A51 5G, although it has a lower amount of RAM, they both have the same number of cores.
The Samsung Galaxy S9 counts with a little more vivid display than Galaxy A51 5G, because although it has a bit smaller screen, it also counts with a better amount of pixels per display inch and a better 1440 x 2960 resolution. The Galaxy A51 5G takes much better photographs and videos than Galaxy S9, because although it has lower video frame rates and a much tinier aperture which is not nice for low light photography, and they both have the same (4K) video quality, the Galaxy A51 5G also counts with a lot bigger sensor taking much better quality pictures and videos and a back camera with a much better resolution.
The Galaxy A51 5G has a way bigger storage for apps and games than Galaxy S9, because it has an external memory slot that admits up to 1000 GB and 128 GB internal memory. Galaxy A51 5G has a very superior battery life than Galaxy S9, because it has a 50% more battery size.
Although Galaxy A51 5G is a better device, it is way more expensive than Galaxy S9, and it doesn't have such a good relation between it's price and quality as the Galaxy S9. If you are trying to save a few dollars, you can get Galaxy S9, letting go a couple features, but you will get the most with your money.
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