Compare phones
| Global Score | |
| 77.6 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11, 10 |
| 2014-09-29 | 2020-03-23 |
| 6.04 x 3.09 x 0.33 inches | 6.26 x 2.96 x 0.35 inches |
| 6.21 ounces | 6.63 ounces |
| Black, Gold, Pink and White | Midnight blue and Raven black |
| Aluminum and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 515 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 8.4 |
| Performance | |
| Samsung Exynos 7 Octa 5433 chipset | Exynos 9611 chipset |
| ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 20 nm (Octa-Core 1900 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-T760 MP6 GPU | Mali-G72 MP3 GPU |
| 9 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 11.74 |
| Camera | |
| 16.00 MP + 3.70 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| 31.00mm focal length | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.9 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3220mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 5.2 | 7.52 |
| Other Features | |
| Bluetooth 4.1, EDR | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| 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 Samsung Galaxy M21 is a bit better than Galaxy Note4, getting a general score of 84.1 against 77.6. The Samsung Galaxy M21 is a way newer phone than Galaxy Note4, although it is a little heavier and just a bit thicker. The Samsung Galaxy M21 features just a bit better hardware performance than Samsung Galaxy Note4, and although they both have a Octa-Core CPU, the Samsung Galaxy M21 also has more RAM memory.
Samsung Galaxy Note4 has a bit more vivid screen than Samsung Galaxy M21, because although it has a bit smaller screen, it also counts with a better 1440 x 2560px resolution and more pixels per inch in the screen. Galaxy M21 counts with a much bigger storage for apps and games than Galaxy Note4, because it has a slot for external memory cards that admits a maximum of 512 GB and 32 GB more internal storage.
The Galaxy M21 features a really longer battery duration than Galaxy Note4, because it has 6000mAh of battery capacity instead of 3220mAh. Galaxy M21 takes better videos and photos than Galaxy Note4, and although they both have the same (4K) video resolution and the same 30 frames per second video frame rates, the Galaxy M21 also has a back camera with a lot higher 48 megapixels resolution, a much bigger camera sensor providing a much higher image quality and a larger aperture to capture better photography and videos in poorly lited situations.
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