Compare phones
| Global Score | |
| 98.1 | 82.9 |
| Basic Information | |
| Samsung | |
| Android 11 | Android 11, 10 |
| 2021-01-29 | 2020-08-20 |
| 6.50 x 2.98 x 0.35 inches | 5.67 x 2.73 x 0.32 inches |
| 8.04 ounces | 5.04 ounces |
| Phantom black and Silver | Just black |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | $ 349.00 |
| Display / Screen | |
| 6.8 inches | 5.8 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | OLED |
| 516 pixels per inch | 444 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8.3 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 730G SM7150-AA chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 108.00 MP + 40.00 MP | 12.20 MP + 8.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 24.00mm focal length | 27.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.39 inches (1/2.55") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 13.75 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3140mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.12 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.1 |
| 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 Ultra is better than the Google Pixel 4a, having a 98.1 score against 82.9. Both of these phones work with the same Android 11 OS, so you shouldn't see any differences regarding operating system features. Even though the Galaxy S21 Ultra is better than Google Pixel 4a, we must tell that it is also a little bit thicker and way heavier.
The Galaxy S21 Ultra has a more vivid screen than Google Pixel 4a, because it has a bigger screen, a little higher amount of pixels per inch of screen and a better 1440 x 3200 resolution. The Google Pixel 4a has as much storage capacity for applications, games, photos and videos as the Galaxy S21 Ultra, both of them have exactly the same 128 GB internal memory capacity.
Galaxy S21 Ultra counts with a little bit better hardware performance than Google Pixel 4a, and although they both have the same number of cores, the Galaxy S21 Ultra also has a greater amount of RAM memory. The Galaxy S21 Ultra features a much longer battery duration than Google Pixel 4a, because it has 5000mAh of battery capacity.
Galaxy S21 Ultra shoots greater pictures and videos than Google Pixel 4a, because although it has a tinier diafragm aperture which is not good for low light images and videos, it also counts with a camera in the back with a much better 108 megapixels resolution, a lot better video quality and a much bigger sensor which offers a lot better image and video quality.
Although Galaxy S21 Ultra is a better device, it costs a lot more than the Google Pixel 4a, and it doesn't have such a good quality/price relation as Google Pixel 4a. If you want to save some dollars, you can buy Google Pixel 4a, and give up a few features and specifications, but you will get the most with your money.
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