Compare phones
| Global Score | |
| 84.1 | 77.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | -- |
| 2020-03-23 | 2014-09-29 |
| 6.26 x 2.96 x 0.35 inches | 6.04 x 3.09 x 0.33 inches |
| 6.63 ounces | 6.21 ounces |
| Midnight blue and Raven black | Black, Gold, Pink and White |
| Plastic and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 5.7 inches |
| 2340 x 1080 pixels | 2560 x 1440 pixels (Quad HD / 2K) |
| Super AMOLED | Super AMOLED |
| 403 pixels per inch | 515 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.6 |
| Performance | |
| Exynos 9611 chipset | Samsung Exynos 7 Octa 5433 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 20 nm (Octa-Core 1900 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G72 MP3 GPU | Mali-T760 MP6 GPU |
| 9.27 | 9 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 11.74 | 8.12 |
| Camera | |
| 48.00 MP + 20.00 MP | 16.00 MP + 3.70 MP |
| f/2.00 aperture | f/2.20 aperture |
| 26.00mm focal length | 31.00mm focal length |
| 0.5 inches (1/2") sensor | 0.38 inches (1/2.6") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (60 fps) (Full HD) slow motion video |
| 11.55 | 9.9 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Micro SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 3220mAh Li - Ion Battery |
| Non-Removable Battery | Removable Battery |
| 7.52 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.1, EDR |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy M21 has a score of 84.1, which is a bit better than Galaxy Note4's 77.6 overall score. The Samsung Galaxy M21 is a a lot newer phone than Galaxy Note4, but it is a bit thicker and a bit heavier. Galaxy M21 features a bit better processing unit than Samsung Galaxy Note4, and although they both have 8 processing cores, the Galaxy M21 also has more RAM.
Samsung Galaxy Note4 features a little sharper screen than Samsung Galaxy M21, because although it has a quite smaller screen, it also counts with a greater display density and a better 1440 x 2560 pixels resolution. Samsung Galaxy M21 counts with a much bigger storage capacity to install applications and games than Samsung Galaxy Note4, because it has 64 GB internal storage and a SD memory card expansion slot that supports a maximum of 512 GB.
Galaxy M21 shoots better photographs and videos than Galaxy Note4, and although they both have the same 3840x2160 (4K) video quality and the same 30 fps video frame rates, the Galaxy M21 also has a bigger aperture, a lot bigger back-facing camera sensor providing a way higher image quality and a camera with way more mega pixels.
The Samsung Galaxy M21 counts with a really longer battery duration than Galaxy Note4, because it has an 86% larger battery capacity.
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