Compare phones
| Global Score | |
| 84.1 | 77 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10, 9.0 Pie |
| 2020-03-23 | 2019-10-05 |
| 6.26 x 2.96 x 0.35 inches | 6.43 x 3.05 x 0.31 inches |
| 6.63 ounces | 6.46 ounces |
| Midnight blue and Raven black | Black, Blue, Green and Red |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1560 x 720 pixels |
| Super AMOLED | TFT |
| 403 pixels per inch | 264 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.2 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 450 SDM450 (14 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Cortex-A53 (Octa-Core 1800 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 506 GPU |
| 9.27 | 8.91 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 48.00 MP + 20.00 MP | 13.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.25 inches (1/4") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 8.91 |
| 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) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M21 is just a bit better than the Galaxy A20s, getting an 84.1 score against 77. Despite being the best we are comparing, the Galaxy M21 is a somewhat thicker and a little bit heavier phone than the Galaxy A20s. These phones include the same Android 11 operating system, so you shouldn't notice any difference regarding that.
The Galaxy M21 has a better screen than Galaxy A20s, because although it has a little smaller screen, it also counts with a much better pixel count per inch of screen and a way higher 1080 x 2340 resolution. Galaxy M21 counts with a bit better processing unit than Galaxy A20s. Both have a 4 GB RAM and 8 processing cores.
Samsung Galaxy A20s's storage to install applications and games is just as good as the Samsung Galaxy M21 one, they have an external memory card slot that supports up to 512 GB and the same internal memory capacity. Galaxy M21 features a way better camera than Galaxy A20s, because although it has a tinier camera aperture which is worse for capturing photos or video in poorly lited situations, it also counts with a way bigger sensor which provides a much higher photo and video quality, a much higher (4K) video quality and a way better resolution back facing camera.
Galaxy M21 counts with a much better battery lifetime than Galaxy A20s, because it has a 6000mAh battery size instead of 4000mAh.
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