Compare phones
| Global Score | |
| 79.5 | 98.1 |
| Basic Information | |
| Asus | Samsung |
| Android 14 | Android 11 |
| 2024-01-08 | 2021-01-29 |
| 6.45 x 3.02 x 0.35 inches | 6.50 x 2.98 x 0.35 inches |
| 7.94 ounces | 8.04 ounces |
| Phantom Black and Rebel Grey | Phantom black and Silver |
| Aluminum and Glass (Corning Gorilla Glass) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| OLED | Dynamic AMOLED |
| 387 pixels per inch | 516 pixels per inch |
| 2500 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.5 | 9.8 |
| Performance | |
| QualcommSnapdragon 8 Gen 3 SM8650-AB (3 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 750 GPU | Adreno 660 GPU |
| 6.21 | 9.72 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 24.00mm focal length | 24.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.54 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 5500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 7.2 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra has a score of 98.1, which is much better than Asus ROG Phone 8's global score of 79.5. Both of these devices have Android OS (Operating System), but Samsung Galaxy S21 Ultra has the older 11 version while Asus ROG Phone 8 has Android 14. The Samsung Galaxy S21 Ultra is a just a bit heavier phone than the Asus ROG Phone 8, but they have the same thickness.
The Galaxy S21 Ultra has a lot better hardware performance than Asus ROG Phone 8. Both have the same number of cores and a 12 GB RAM memory. Galaxy S21 Ultra counts with a slightly better screen than Asus ROG Phone 8, because although it has way less brightness, and they both have a display of the same size, the Galaxy S21 Ultra also counts with a higher resolution of 1440 x 3200 pixels and a better pixels density.
The Asus ROG Phone 8 counts with a superior memory capacity to install applications and games than Samsung Galaxy S21 Ultra, because it has more internal storage capacity. The Asus ROG Phone 8 has just a little bit longer battery duration than Galaxy S21 Ultra, because it has a 5500mAh battery size.
Galaxy S21 Ultra has a bit better camera than Asus ROG Phone 8, and although they both have the same video frame rates and the same video quality, the Galaxy S21 Ultra also has a bigger aperture, a larger camera sensor taking more light and vivid colors and a back facing camera with a lot better resolution.
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