Compare phones
| Global Score | |
| 87.1 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2018-08-24 | 2020-03-23 |
| 6.37 x 3.01 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| 7.09 ounces | 6.63 ounces |
| Cloud silver, Lavender purple, Midnight black and Ocean blue | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 457.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2960 x 1440 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 514 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | 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 | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 11.74 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 20.00 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 | 1920 x 1080 (240 fps) (Full 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 | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy Note9 has a global score of 87.1, which is just a bit better than Galaxy M21's 84.1 overall score. The Galaxy Note9 construction has the same thickness than the Galaxy M21, but it's just a little bit heavier. Samsung Galaxy Note9 counts with just a little better hardware performance than Galaxy M21, and although they both have a Octa-Core processing unit, the Samsung Galaxy Note9 also has a larger amount of RAM.
The Galaxy Note9 counts with a little more vivid screen than Galaxy M21, and although they both have a display with the same size, the Galaxy Note9 also has a better resolution of 1440 x 2960 pixels and a better pixels quantity in each display inch. The Samsung Galaxy Note9 counts with a very superior memory capacity for games and applications than Samsung Galaxy M21, and although they both have an external memory slot that supports a maximum of 512 GB, the Samsung Galaxy Note9 also has 128 GB internal memory capacity.
Samsung Galaxy M21 takes better pictures and videos than Galaxy Note9, because although it has a lot tinier camera aperture and worse video frame rate, and they both have the same (4K) video definition, the Samsung Galaxy M21 also counts with a back-facing camera with a way higher resolution and a lot bigger back camera sensor capturing more light and vivid colors.
The Galaxy M21 features a much longer battery life than Samsung Galaxy Note9, because it has a 50% larger battery capacity.
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