Compare phones
| Global Score | |
| 88 | 98.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 11 |
| 2019-09-04 | 2021-01-29 |
| 6.73 x 3.06 x 0.37 inches | 6.50 x 2.98 x 0.35 inches |
| 8.47 ounces | 8.04 ounces |
| Black Glare | Phantom black and Silver |
| Aluminum and Glass (Corning Gorilla Glass 3) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.6 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 390 pixels per inch | 516 pixels per inch |
| 600 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 855 Plus SM8150-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 640 GPU | Adreno 660 GPU |
| 9.81 | 9.72 |
| Storage | |
| 512 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 17.6 | 10.1 |
| Camera | |
| 48.00 MP + 24.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.99 | 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, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0, EDR | 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 | FM Radio |
Comparison review
Samsung Galaxy S21 Ultra is better than the Asus ROG Phone II, getting a score of 98.1 against 88. Samsung Galaxy S21 Ultra's design is newer, just a little bit thinner and a little bit lighter than Asus ROG Phone II. Galaxy S21 Ultra has a brighter screen than Asus ROG Phone II, because it has a way brighter screen, a higher resolution of 1440 x 3200px, a little bit bigger display and a higher amount of pixels per inch in the display.
Asus ROG Phone II counts with a superior memory capacity to install games and applications than Galaxy S21 Ultra, because it has more internal memory capacity. The Asus ROG Phone II features a little bit better processing power than Samsung Galaxy S21 Ultra. Both have the same number of cores and the same RAM amount.
Galaxy S21 Ultra features a superior camera than Asus ROG Phone II, and although they both have a same size aperture, the Galaxy S21 Ultra also has a lot bigger sensor taking much higher quality videos and photographs, a much better video quality and a much more megapixels back camera. The Asus ROG Phone II has longer battery performance than Galaxy S21 Ultra, because it has a 20% bigger battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.