Compare phones
| Global Score | |
| 87.1 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-08-24 | 2020-06-29 |
| 6.37 x 3.01 x 0.35 inches | 6.61 x 3.02 x 0.32 inches |
| 7.09 ounces | 6.81 ounces |
| Cloud silver, Lavender purple, Midnight black and Ocean blue | Black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 457.00 | $ 194.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2960 x 1440 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 514 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.7 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Mediatek Helio P35 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 630 GPU | PowerVR GE8320 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 12.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.50 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.39 inches (1/2.55") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.23 | 9.35 |
| 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 |
| 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 a global score of 87.1, which is much better than Galaxy A21's overall score of 76.1. Even being the best cellphone in this review, we must note that it is also older, a little bit heavier and a little thicker. Galaxy Note9 has a little better performance than Galaxy A21, and although they both have a Octa-Core processor, the Galaxy Note9 also has a larger amount of RAM memory.
The Samsung Galaxy Note9 has a brighter display than Galaxy A21, because although it has a bit smaller display, it also counts with a lot better 1440 x 2960 resolution and a lot more pixels per display inch. Galaxy Note9 has a very superior memory for applications and games than Samsung Galaxy A21, and although they both have a SD card slot that holds up to 512 GB, the Galaxy Note9 also has 96 GB more internal storage.
The Samsung Galaxy A21 features a battery lifetime that is just as good as the Galaxy Note9 one. The Samsung Galaxy Note9 takes just a bit better photos and videos than Samsung Galaxy A21, because although it has a camera with a lot lower resolution, it also counts with a way higher 3840x2160 video definition, a larger aperture and a larger back-facing camera sensor which gives a higher photo and video quality.
Although Galaxy Note9 is a better device, it costs a lot more than the Galaxy A21, and it doesn't have such a good relation between it's price and quality as the Galaxy A21. If you prefer to save some money, you can get the Galaxy A21, giving up a couple features and specs, but you'll get the most out of your budget.
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