Compare phones
| Global Score | |
| 77 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-10-05 | 2020-03-23 |
| 6.43 x 3.05 x 0.31 inches | 6.26 x 2.96 x 0.35 inches |
| 6.46 ounces | 6.63 ounces |
| Black, Blue, Green and Red | Midnight blue and Raven black |
| Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1560 x 720 pixels | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 264 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 (14 nm) chipset | Exynos 9611 chipset |
| Cortex-A53 (Octa-Core 1800 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| 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 | |
| 13.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.25 inches (1/4") 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 |
| 8.91 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | 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 | FM Radio |
Comparison review
The Samsung Galaxy M21 is a bit better than Galaxy A20s, having a general score of 84.1 against 77. Even though the Samsung Galaxy M21 is better than the Galaxy A20s, we must note that it's also a just a bit heavier and thicker device. Both of these devices include the same Android 11 OS (Operating System).
Samsung Galaxy M21 features a sharper screen than Galaxy A20s, because although it has a bit smaller display, it also counts with a much better pixels number per inch of screen and a lot higher resolution of 1080 x 2340 pixels. Samsung Galaxy M21's memory for games and applications is very similar to the Galaxy A20s one, they have the same 64 GB internal memory capacity and a SD card slot that supports up to 512 GB.
Samsung Galaxy M21 has just a little better processing power than Samsung Galaxy A20s. They have a Octa-Core CPU and the same RAM amount. Samsung Galaxy M21 has a much longer battery life than Samsung Galaxy A20s, because it has 6000mAh of battery capacity. Galaxy M21 counts with a way better camera than Samsung Galaxy A20s, because although it has a smaller diafragm aperture which is not nice for shooting photographs or video in low light situations, it also counts with a way bigger back camera sensor taking way higher quality videos and pictures, a much higher video quality and a camera in the back with much more mega pixels.
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