Compare phones
| Global Score | |
| 87.1 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-08-24 | 2019-12-27 |
| 6.37 x 3.01 x 0.35 inches | 6.24 x 2.90 x 0.31 inches |
| 7.09 ounces | 6.07 ounces |
| Cloud silver, Lavender purple, Midnight black and Ocean blue | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 457.00 | $ 282.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2960 x 1440 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 514 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.7 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Samsung Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 14.14 |
| 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 | 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 (240 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 | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| 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 |
Comparison review
The Galaxy Note9 has an overall score of 87.1, which is slightly better than the Galaxy A51's general score of 85.5. Even being the best in our current comparison, the Galaxy Note9 is an older, heavier and somewhat thicker cellphone than the Galaxy A51. Samsung Galaxy Note9 has a little faster CPU than Galaxy A51, and although they both have a Octa-Core processing unit, the Samsung Galaxy Note9 also has a greater amount of RAM memory.
Samsung Galaxy Note9 has a slightly better looking screen than Galaxy A51, because although it has a quite smaller screen, it also counts with a greater pixels density and a higher resolution of 1440 x 2960px. The Galaxy A51 features as much storage capacity to store more games and applications as the Galaxy Note9 one, both of them have a SD memory slot that admits a maximum of 512 GB and equal internal storage capacity.
Samsung Galaxy A51's battery duration is just as good as the Galaxy Note9 one. Galaxy A51 counts with a superior camera than Galaxy Note9, because although it has a much tinier camera aperture and slower video frame rates, and they both have the same (4K) video definition, the Galaxy A51 also counts with a way bigger back-facing camera sensor which gives a much better photo and video quality and a camera in the back with lot more megapixels.
Although Samsung Galaxy Note9 is a better device, it costs a lot more money than the Galaxy A51, and it doesn't have such a good price and quality relation as Galaxy A51. So if you need that extra features and specs, you can buy the Samsung Galaxy Note9, but if you don't you can save some money and buy the Galaxy A51, giving up some features and specifications.
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