| Global Score | |
| 81.7 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0, 4.4 | Android 11, 10 |
| 2014-09-03 | 2020-03-23 |
| 5.96 x 3.24 x 0.33 inches | 6.26 x 2.96 x 0.35 inches |
| 6.14 ounces | 6.63 ounces |
| Black and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 400.00 | -- |
| Display / Screen | |
| 5.6 inches | 6.4 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 525 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.6 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 805 APQ8084 chipset | Exynos 9611 chipset |
| Krait 450 (Quad-Core 2700 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB (800 MHz) RAM | 4 GB RAM |
| Adreno 420 (500 MHz) GPU | Mali-G72 MP3 GPU |
| 9.54 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, 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 (240 fps) (Full HD) slow motion video |
| 9.9 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS, GSM and CDMA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 7.3 | 6.7 |
| Battery Life | |
| 3000mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 18 hours talk time | -- |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | 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 |
The Samsung Galaxy M21 has an overall score of 84.1, which is a bit better than the Galaxy Note Edge's overall score of 81.7. Samsung Galaxy M21's construction is a lot newer, but just a little heavier and a bit thicker than Galaxy Note Edge. These phones work with Android operating system, but Samsung Galaxy M21 has 11 version while Galaxy Note Edge has Android 5.0 version, offering some extra features and better performance.
The Samsung Galaxy Note Edge counts with a much better looking display than Samsung Galaxy M21, because although it has a little smaller display, it also counts with a greater pixel count per inch of display and a higher resolution of 2560 x 1440. The Galaxy Note Edge counts with a little faster processor than Samsung Galaxy M21, because although it has a lower number of cores (but faster) and a smaller amount of RAM memory, it also counts with an additional graphics processing unit.
The Galaxy M21 counts with a very superior memory capacity for games and applications than Samsung Galaxy Note Edge, because it has 64 GB internal storage capacity and a SD card slot that admits a maximum of 512 GB. The Galaxy M21 has a superior battery performance than Samsung Galaxy Note Edge, because it has 6000mAh of battery capacity against 3000mAh.
Galaxy M21 takes better videos and photos than Samsung Galaxy Note Edge, and although they both have the same 30 fps video frame rates and the same 3840x2160 video quality, the Galaxy M21 also has a much larger camera sensor which offers a much higher image and video quality, a back camera with way more mega-pixels and a larger aperture to take better low light photos and videos.
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