Compare phones
| Global Score | |
| 11.67 | 9.42 |
| Basic Information | |
| Samsung | |
| Android 11 | Android 11, 10, 9.0 Pie |
| 2021-01-29 | 2019-05-07 |
| 6.50 x 2.98 x 0.35 inches | 5.96 x 2.76 x 0.32 inches |
| 8.04 ounces | 5.19 ounces |
| Phantom black and Silver | Black, Purple and White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | $ 186.00 |
| Display / Screen | |
| 6.8 inches | 5.6 inches |
| 3200 x 1440 pixels | 2220 x 1080 pixels |
| Dynamic AMOLED | OLED |
| 516 pixels per inch | 441 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 670 SDM670 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 615 GPU |
| 9.72 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 7.7 |
| Camera | |
| 108.00 MP + 40.00 MP | 12.20 MP + 8.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 28.00mm 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 4.32 |
| 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
Samsung Galaxy S21 Ultra is a lot better than Google Pixel 3a, having a general score of 11.67 against 9.42. Even though Samsung Galaxy S21 Ultra is newer than Google Pixel 3a, it's just a little bit thicker and a lot heavier. Both of these phones use the same Android 11 OS (Operating System). Galaxy S21 Ultra counts with a brighter screen than Google Pixel 3a, because it has a higher resolution of 1440 x 3200, a larger display and a just a bit better count of pixels per inch in the display.
The Samsung Galaxy S21 Ultra has a much bigger storage capacity for games and applications than Google Pixel 3a, because it has 64 GB more internal memory. Samsung Galaxy S21 Ultra features a bit better processing power than Google Pixel 3a, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a larger amount of RAM memory.
Galaxy S21 Ultra features longer battery life than Google Pixel 3a, because it has 5000mAh of battery capacity instead of 3000mAh. The Galaxy S21 Ultra takes way better videos and photos than Google Pixel 3a, and although they both have a F1.8 aperture, the Galaxy S21 Ultra also has a lot larger sensor taking lot better quality videos and photos, a much better video resolution and a back facing camera with a lot higher resolution.
Although Samsung Galaxy S21 Ultra is a better device, it is a lot more expensive than Google Pixel 3a, and it doesn't have such a good relation between it's price and quality as the Google Pixel 3a. If you are trying to save a few dollars, you can get the Google Pixel 3a, and give up a few features and specs, but you will get the most out of your savings.