| Global Score | |
| 83 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie | Android 10 |
| 2017-09-15 | 2020-06-29 |
| 6.40 x 2.94 x 0.34 inches | 6.61 x 3.02 x 0.32 inches |
| 6.88 ounces | 6.81 ounces |
| Deep Sea blue, Maple gold, Midnight black and Orchid gray | Black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 440.00 | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2960 x 1440 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 522 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.7 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Mediatek Helio P35 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2350 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 540 GPU | PowerVR GE8320 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 9.84 |
| Camera | |
| 12.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 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 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 9.79 | 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 | |
| 3300mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 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 |
Galaxy Note8 has a score of 83, which is just a bit better than the Samsung Galaxy A21's 76.1 global score. Galaxy Note8 is a incredibly older, just a little bit thicker and a bit heavier cellphone than Samsung Galaxy A21. Both phones in this comparison use Android OS (operating system), but Galaxy Note8 has a newer 9.0 Pie version while Samsung Galaxy A21 has Android 10, so it provides you some nice extra features.
The Galaxy Note8 has a bit better CPU than Galaxy A21, and although they both have 8 processing cores, the Galaxy Note8 also has a larger amount of RAM. Samsung Galaxy Note8 has a much better looking screen than Galaxy A21, because although it has a bit smaller screen, it also counts with a much better 1440 x 2960px resolution and a way greater display pixels density.
The Samsung Galaxy Note8 features slightly more memory capacity to install applications and games than Galaxy A21, because although it has a SD memory card expansion slot that supports 256 GB smaller, it also counts with 64 GB internal memory. Galaxy Note8 shoots slightly better pictures and videos than Galaxy A21, because although it has a back-facing camera with much less megapixels resolution, it also counts with a bigger back camera sensor providing a better image quality, a bigger aperture for better photography in low light situations and a way higher video definition.
Galaxy A21 counts with better battery duration than Galaxy Note8, because it has 4000mAh of battery capacity against 3300mAh.
Although Samsung Galaxy Note8 is a better device, it costs a lot more than Samsung Galaxy A21, and it doesn't have such a good quality/price relation as Samsung Galaxy A21. If you prefer to save some dollars, you can buy Samsung Galaxy A21, giving up a couple features and specs, but you will get the most with your money.
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