Compare phones
| Global Score | |
| 85.2 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-11-15 | 2020-04-29 |
| 6.40 x 3.03 x 0.31 inches | 6.26 x 2.90 x 0.34 inches |
| 6.46 ounces | 6.60 ounces |
| Bubblegum pink, Caviar black and Lemonade blue | Prism cube black |
| Glass and Metal | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2220 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 392 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung Exynos 980 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 512 GPU | Mali-G76 MP5 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 14.14 | 15.38 |
| Camera | |
| 24.00 MP + 24.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.45 | 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, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3800mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 6.32 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy A51 5G is a little bit better than Galaxy A9 (2018), getting a 90.8 score against 85.2. Galaxy A51 5G is a newer device than Galaxy A9 (2018), but it is just a little heavier and a bit thicker. Samsung Galaxy A51 5G features a slightly better display than Galaxy A9 (2018), because it has a quite bigger display, a just a little better quantity of pixels per inch in the screen and a slightly better 1080 x 2400 pixels resolution.
The Galaxy A9 (2018) and the Galaxy A51 5G both have extremely similar CPUs, both have 6 GB of RAM memory and a Octa-Core CPU. The Galaxy A51 5G has a superior camera than Galaxy A9 (2018), because although it has a tinier diafragm aperture, and they both have the same (4K) video resolution and the same 30 frames per second video frame rate, the Galaxy A51 5G also counts with a back camera with much more mega pixels and a much bigger back-facing camera sensor taking lot better quality photos and videos.
Galaxy A51 5G features a little bit better storage for apps and games than Galaxy A9 (2018), and although they both have equal 128 GB internal memory capacity, the Galaxy A51 5G also has a SD memory slot that holds up to 1000 GB. The Galaxy A51 5G counts with just a bit longer battery performance than Samsung Galaxy A9 (2018), because it has 4500mAh of battery capacity.
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