Compare phones
| Global Score | |
| 74.7 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-04-10 | 2020-03-23 |
| 6.24 x 2.94 x 0.31 inches | 6.26 x 2.96 x 0.35 inches |
| 5.96 ounces | 6.63 ounces |
| Black,Deep blue and Red | Midnight blue and Raven black |
| Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 166.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 1560 x 720 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 268 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Samsung Exynos 7884 chipset | Exynos 9611 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 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-G71 MP2 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 11.74 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.02 | 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 Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 is better than Samsung Galaxy A20, having a general score of 84.1 against 74.7. Even though Galaxy M21 is newer than Samsung Galaxy A20, it is somewhat thicker and somewhat heavier. These phones come with the same Android 11 OS, so both of them should give very similar OS features. The Samsung Galaxy M21 counts with a bit more powerful CPU than Galaxy A20, and although they both have 8 processing cores, the Samsung Galaxy M21 also has a higher amount of RAM memory.
The Galaxy M21 has a sharper display than Galaxy A20, and although they both have a same size display, the Galaxy M21 also has a way higher 1080 x 2340 resolution and a way greater screen density. Galaxy M21 counts with a greater camera than Samsung Galaxy A20, because although it has a smaller camera aperture which is not recommended for shooting photographs and videos in low light environments, it also counts with a way more megapixels back-facing camera, a lot better 3840x2160 video quality and a lot larger back-facing camera sensor capturing more light and vivid colors.
The Galaxy M21 has a quite bigger storage for games and applications than Samsung Galaxy A20, and although they both have an external memory card slot that admits up to 512 GB, the Galaxy M21 also has 32 GB more internal storage capacity. The Samsung Galaxy M21 features a very superior battery life than Galaxy A20, because it has a 6000mAh battery capacity.
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