Compare phones
| Global Score | |
| 98.1 | 79.5 |
| Basic Information | |
| Samsung | Asus |
| Android 11 | Android 14 |
| 2021-01-29 | 2024-01-08 |
| 6.50 x 2.98 x 0.35 inches | 6.45 x 3.02 x 0.35 inches |
| 8.04 ounces | 7.94 ounces |
| Phantom black and Silver | Phantom Black and Rebel Grey |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | OLED |
| 516 pixels per inch | 387 pixels per inch |
| 1500 cd/m2 brightness | 2500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 9.5 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | QualcommSnapdragon 8 Gen 3 SM8650-AB (3 nm) chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 750 GPU |
| 9.72 | 6.21 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 108.00 MP + 40.00 MP | 50.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 24.00mm focal length | 24.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.64 inches (1/1.56") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 13.75 | 12.54 |
| 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 |
| 10.7 | 10.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.8 | 7.2 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.3 |
| 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 | -- |
Comparison review
The Galaxy S21 Ultra is a lot better than the Asus ROG Phone 8, with a 98.1 score against 79.5. The Galaxy S21 Ultra design has the same thickness than the Asus ROG Phone 8, but it's just a little bit heavier. Both of these phones use Android operating system, but Galaxy S21 Ultra has the older 11 version and Asus ROG Phone 8 has Android 14.
Galaxy S21 Ultra counts with just a bit better screen than Asus ROG Phone 8, because although it has a lot darker display, and they both have a display with the same size, the Galaxy S21 Ultra also counts with a higher amount of pixels per inch in the display and a better 1440 x 3200 pixels resolution.
Asus ROG Phone 8 counts with much more memory capacity for applications, games, photos and videos than Samsung Galaxy S21 Ultra, because it has 256 GB internal storage. Galaxy S21 Ultra features a way better performance than Asus ROG Phone 8. Both of them have 8 cpu cores and the same RAM memory amount.
Samsung Galaxy S21 Ultra features just a bit better camera than Asus ROG Phone 8, and although they both have the same video frame rate and the same 7680x4320 video resolution, the Samsung Galaxy S21 Ultra also has a larger camera aperture to take better low light images, a way better 108 mega pixels resolution back camera and a bigger back camera sensor.
Asus ROG Phone 8 features just a bit better battery performance than Galaxy S21 Ultra, because it has a 10% more battery capacity.
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