Compare phones
| Global Score | |
| 98.1 | 83 |
| Basic Information | |
| Samsung | Asus |
| Android 11 | Android 11 |
| 2021-01-29 | 2021-05-13 |
| 6.50 x 2.98 x 0.35 inches | 5.83 x 2.70 x 0.35 inches |
| 8.04 ounces | 5.96 ounces |
| Phantom black and Silver | Horizon Silver and Obsidian Black |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Aluminum and Glass (Corning Gorilla Glass 3) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 5.9 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 446 pixels per inch |
| 1500 cd/m2 brightness | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.72 | 9.63 |
| 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 | 64.00 MP + 12.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 27.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 13.75 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Nano SIM Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.2, EDR |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S21 Ultra has a score of 98.1, which is much better than the Asus ZenFone 8's 83 general score. These phones include the same Android 11 OS (Operating System). The Galaxy S21 Ultra is a a lot heavier cellphone than the Asus ZenFone 8, but they have the same thickness. Galaxy S21 Ultra features a bit better processing power than Asus ZenFone 8, and although they both have the same number of cores, the Galaxy S21 Ultra also has a greater amount of RAM memory.
The Samsung Galaxy S21 Ultra counts with a little sharper display than Asus ZenFone 8, because it has a brighter screen, a bigger display, a higher resolution of 1440 x 3200 pixels and a quite higher quantity of pixels per inch of screen. The Samsung Galaxy S21 Ultra has a bit better camera than Asus ZenFone 8, and although they both have the same aperture, the same 7680x4320 video resolution and the same video frame rate, the Samsung Galaxy S21 Ultra also has a back facing camera with much more megapixels and a lot larger back-facing camera sensor providing a lot better image quality.
The Asus ZenFone 8 features as much storage capacity to install applications and games as Galaxy S21 Ultra, they have exactly the same 128 GB internal memory. Galaxy S21 Ultra has better battery life than Asus ZenFone 8, because it has a 5000mAh battery capacity.
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