Compare phones
| Global Score | |
| 77.7 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.2 | Android 11, 10 |
| 2013-09-25 | 2020-03-23 |
| 5.95 x 3.12 x 0.33 inches | 6.26 x 2.96 x 0.35 inches |
| 5.93 ounces | 6.63 ounces |
| Black, Pink and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 386 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.9 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 800 MSM8974 chipset | Exynos 9611 chipset |
| Krait 400 (Quad-Core 2300 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 330 GPU | Mali-G72 MP3 GPU |
| 9 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDHC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.46 | 11.74 |
| Camera | |
| 13.00 MP + 2.00 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| 31.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.57 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3200mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 5.2 | 7.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M21 is just a bit better than the Galaxy Note3, getting a general score of 84.1 against 77.7. Galaxy M21's design is way newer than Galaxy Note3's, but it's just a bit thicker and heavier. These phones work with Android OS (Operating System), but Galaxy M21 has 11 version while Galaxy Note3 has Android 4.4.2.
Galaxy M21 features a little better processing power than Galaxy Note3, because it has more RAM memory and more processing cores. Galaxy M21 has a bit better screen than Galaxy Note3, because it has a slightly higher resolution of 1080 x 2340 pixels, a just a bit higher amount of pixels in each inch of screen and a little bigger display.
Galaxy M21 features a lot bigger memory for applications, games, photos and videos than Galaxy Note3, and although they both have equal internal memory capacity, the Galaxy M21 also has a SD extension slot that allows a maximum of 512 GB. Galaxy M21 counts with a way better camera than Samsung Galaxy Note3, and although they both have the same video quality and the same 30 frames per second video frame rates, the Galaxy M21 also has a bigger aperture to capture better low-light captures and videos, a way bigger sensor taking more light and vivid colors and a lot better resolution back-facing camera.
The Galaxy M21 has a very superior battery performance than Galaxy Note3, because it has an 88% bigger battery size.
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