Compare phones
| Global Score | |
| 82.9 | 91.8 |
| Basic Information | |
| Samsung | |
| Android 11, 10 | Android 11 |
| 2020-08-20 | 2021-01-29 |
| 5.67 x 2.73 x 0.32 inches | 5.97 x 2.80 x 0.31 inches |
| 5.04 ounces | 6.03 ounces |
| Just black | Gray, Phantom pink, Violet and White |
| Plastic and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 349.00 | $ 722.00 |
| Display / Screen | |
| 5.8 inches | 6.2 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| OLED | Dynamic AMOLED |
| 444 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.3 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 730G SM7150-AA chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.20 MP + 8.00 MP | 12.00 MP + 10.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.79 | 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 | |
| 3140mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.12 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S21 has a global score of 91.8, which is much better than the Google Pixel 4a's global score of 82.9. Galaxy S21's construction is somewhat heavier but a little thinner than the Google Pixel 4a, and they were only released 5 months apart. Both of these phones work with the same Android 11 operating system.
The Galaxy S21 has a better display than Google Pixel 4a, because although it has a bit less pixels per inch of display, it also counts with a quite bigger screen and a little higher resolution of 1080 x 2400. Galaxy S21's storage to store more apps and games is very similar to Google Pixel 4a's one, both have exactly the same 128 GB internal storage capacity.
Samsung Galaxy S21 has a little bit better hardware performance than Google Pixel 4a, and although they both have a Octa-Core processor, the Samsung Galaxy S21 also has a higher amount of RAM memory. The Samsung Galaxy S21 shoots much better pictures and videos than Google Pixel 4a, because although it has a less MP resolution back camera and a smaller diafragm aperture which is not recommended for capturing pictures and videos in low-light situations, it also counts with a lot bigger back camera sensor providing a lot higher image quality and a much better video resolution.
The Galaxy S21 has greater battery duration than Google Pixel 4a, because it has 4000mAh of battery capacity instead of 3140mAh.
Although Galaxy S21 is a better device, it costs a lot more money than Google Pixel 4a, and it doesn't have such a good price and quality relation as the Google Pixel 4a. If you prefer to save some money, you can buy the Google Pixel 4a, and give up some specs and features, but you will get the most out of your savings.
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