Compare phones
| Global Score | |
| 74.7 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11 |
| 2019-04-10 | 2021-01-29 |
| 6.24 x 2.94 x 0.31 inches | 5.97 x 2.80 x 0.31 inches |
| 5.96 ounces | 6.03 ounces |
| Black,Deep blue and Red | Gray, Phantom pink, Violet and White |
| Plastic | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 166.00 | $ 722.00 |
| Display / Screen | |
| 6.4 inches | 6.2 inches |
| 1560 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 268 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 9.2 |
| Performance | |
| Samsung Exynos 7884 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 |
| 3 GB RAM | 8 GB RAM |
| Mali-G71 MP2 GPU | Adreno 660 GPU |
| 8.91 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 13.00 MP + 8.00 MP | 12.00 MP + 10.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm 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 | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S21 is much better than the Galaxy A20, getting a 91.8 score against 74.7. Both of these devices use the same Android 11 OS (operating system), so you shouldn't see any difference in that aspect. Galaxy S21's construction has the same thickness than Galaxy A20, but it is a bit heavier. Samsung Galaxy S21 features a much better looking screen than Galaxy A20, because although it has a little bit smaller display, it also counts with a much higher resolution of 1080 x 2400px and a lot greater display density.
The Galaxy S21 has a bit more memory capacity to install games and applications than Galaxy A20, because although it has no SD memory card expansion slot, it also counts with 128 GB internal memory. The Samsung Galaxy S21 features a bit better performance than Galaxy A20, and although they both have 8 processing cores, the Samsung Galaxy S21 also has 5 GB more RAM.
Samsung Galaxy A20 and Galaxy S21 both count with extremely similar batteries. The Samsung Galaxy S21 features a much better camera than Galaxy A20, because although it has a back facing camera with less mega-pixels, it also counts with a bigger diafragm aperture, a way better 7680x4320 video resolution and a much bigger sensor.
Although Galaxy S21 is a better device, it is way more expensive than the Samsung Galaxy A20, and it doesn't have such a good quality/price relation as Samsung Galaxy A20. So if you want that extra specs, you can buy Galaxy S21, but if you don't you can save some money and get the Samsung Galaxy A20, resigning some features and specifications.
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