Compare phones
| Global Score | |
| 98.1 | 88 |
| Basic Information | |
| Samsung | Asus |
| Android 11 | -- |
| 2021-01-29 | 2019-09-04 |
| 6.50 x 2.98 x 0.35 inches | 6.73 x 3.06 x 0.37 inches |
| 8.04 ounces | 8.47 ounces |
| Phantom black and Silver | Black Glare |
| 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 | 6.6 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 390 pixels per inch |
| 1500 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 8.5 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 855 Plus SM8150-AC chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 640 GPU |
| 9.72 | 9.81 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 13.75 | 11.99 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0, 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 general score of 98.1, which is much better than the Asus ROG Phone II's global score of 88. The Galaxy S21 Ultra is a newer device, and it's also a little lighter and just a little thinner than Asus ROG Phone II. The Galaxy S21 Ultra has a sharper screen than Asus ROG Phone II, because it has way more brightness, a better resolution of 1440 x 3200, a better pixels density and a quite bigger display.
Asus ROG Phone II features a bit more powerful processor than Samsung Galaxy S21 Ultra. Both of them have 8 processing cores and a 12 GB RAM memory. Galaxy S21 Ultra features a superior camera than Asus ROG Phone II, and although they both have the same aperture, the Galaxy S21 Ultra also has a way larger sensor taking way higher quality videos and photographs, a way better video resolution and a much higher resolution back-facing camera.
Asus ROG Phone II has a lot bigger memory to store more games and applications than Samsung Galaxy S21 Ultra, because it has 512 GB internal storage. The Asus ROG Phone II counts with improved battery duration than Galaxy S21 Ultra, because it has a 20 percent bigger battery capacity.
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