Compare phones
| Global Score | |
| 78.9 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 10, 9.0 Pie, 8.1 Oreo | Android 11 |
| 2019-02-05 | 2021-01-29 |
| 6.16 x 2.93 x 0.35 inches | 5.97 x 2.80 x 0.31 inches |
| 6.56 ounces | 6.03 ounces |
| Charcoal black and Ocean blue | Gray, Phantom pink, Violet and White |
| Plastic and Plastic | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.3 inches | 6.2 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 409 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.2 |
| Performance | |
| Samsung Exynos 7 Octa 7904 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G71 MP2 GPU | Adreno 660 GPU |
| 8.91 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 13.00 MP + 8.00 MP | 12.00 MP + 10.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 12.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.02 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy S21 is better than Galaxy M20, with a 91.8 score against 78.9. Both of these phones use Android operating system, but the Samsung Galaxy S21 has 11 version and Galaxy M20 has Android 10. The Samsung Galaxy S21 design is newer, just a little bit lighter and somewhat thinner than the Galaxy M20.
Samsung Galaxy S21 counts with a sharper display than Galaxy M20, because although it has a little smaller screen, it also counts with a slightly better 1080 x 2400px resolution and a bit higher count of pixels in each inch in the display. Galaxy S21 features a bit faster processor than Galaxy M20, and although they both have 8 CPU cores, the Galaxy S21 also has more RAM.
The Galaxy S21 captures much clearer photos and videos than Galaxy M20, because although it has a lower resolution back-facing camera, it also counts with a bigger aperture for better photos in poorly lited environments, a lot better 7680x4320 video quality and a much bigger sensor capturing much higher quality pictures and videos.
Galaxy M20 has more memory capacity for games and applications than Galaxy S21, because although it has less internal storage, it also counts with an external memory slot that admits up to 512 GB. Galaxy M20 counts with greater battery life than Samsung Galaxy S21, because it has a 5000mAh battery capacity against 4000mAh.
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