Compare phones
| Global Score | |
| 78.8 | 98.1 |
| Basic Information | |
| Samsung | |
| Android 11, 10, 9.0 Pie | Android 11 |
| 2019-05-07 | 2021-01-29 |
| 5.96 x 2.76 x 0.32 inches | 6.50 x 2.98 x 0.35 inches |
| 5.19 ounces | 8.04 ounces |
| Black, Purple and White | Phantom black and Silver |
| Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 186.00 | $ 966.00 |
| Display / Screen | |
| 5.6 inches | 6.8 inches |
| 2220 x 1080 pixels | 3200 x 1440 pixels |
| OLED | Dynamic AMOLED |
| 441 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 670 SDM670 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 360, 64-bit, 10 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 615 GPU | Adreno 660 GPU |
| 9.09 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 7.7 | 10.1 |
| Camera | |
| 12.20 MP + 8.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 28.00mm focal length | 24.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.75 inches (1/1.33") 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 | 13.75 |
| 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 | |
| 3000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | 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 much better than Google Pixel 3a, with a 98.1 score against 78.8. Both of these phones come with the same Android 11 OS, so you shouldn't notice any differences regarding that. The Galaxy S21 Ultra body is newer, but much heavier and just a bit thicker than Google Pixel 3a. The Galaxy S21 Ultra counts with a brighter display than Google Pixel 3a, because it has a larger screen, a quite greater pixel density and a higher resolution of 1440 x 3200px.
Samsung Galaxy S21 Ultra features a much better storage capacity to store more games and applications than Google Pixel 3a, because it has more internal memory capacity. Galaxy S21 Ultra counts with just a little better hardware performance than Google Pixel 3a, and although they both have a Octa-Core processor, the Galaxy S21 Ultra also has a greater amount of RAM.
Samsung Galaxy S21 Ultra has a much better camera than Google Pixel 3a, and although they both have the same aperture, the Samsung Galaxy S21 Ultra also has a lot larger back camera sensor, a much better video quality and a much higher resolution back-facing camera. Samsung Galaxy S21 Ultra counts with a much longer battery life than Google Pixel 3a, because it has a 67 percent larger battery capacity.
Although Galaxy S21 Ultra is a better device, it costs a lot more money than the Google Pixel 3a, and it doesn't have such a good quality/price relation as Google Pixel 3a. So if you need that extra features and specs, you can buy Galaxy S21 Ultra, otherwise you can save a couple dollars and get the Google Pixel 3a, resigning some specifications.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.