Compare phones
| Global Score | |
| 77.1 | 76.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 10 |
| 2018-10-29 | 2020-06-29 |
| 6.25 x 3.00 x 0.34 inches | 6.61 x 3.02 x 0.32 inches |
| 7.05 ounces | 6.81 ounces |
| Black | Black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 1099.00 | $ 194.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 402 pixels per inch | 270 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Mediatek Helio P35 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 630 GPU | PowerVR GE8320 GPU |
| 9.72 | 9.27 |
| Storage | |
| 512 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 17.6 | 9.84 |
| Camera | |
| 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.39 inches (1/2.55") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 3.63 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Asus ROG Phone is just a bit better than the Samsung Galaxy A21, having a general score of 77.1 against 76.1. Even being the best phone in our current comparison, we must note that it is also an older, a little thicker and just a little bit heavier phone. The Asus ROG Phone has a better screen than Galaxy A21, because although it has a little smaller screen, it also counts with a higher quantity of pixels per screen inch and a way better resolution of 1080 x 2160 pixels.
The Asus ROG Phone has a bit more powerful processor than Samsung Galaxy A21, and although they both have a Octa-Core CPU, the Asus ROG Phone also has more RAM memory. The Asus ROG Phone counts with a much bigger memory for apps and games than Samsung Galaxy A21, because although it has no external SD slot, it also counts with 480 GB more internal storage.
Samsung Galaxy A21 features a much better camera than Asus ROG Phone, although it has a tinier back-facing camera sensor capturing less light and dull colors and slower video frame rate, they both have a same size aperture and the same 1920x1080 (Full HD) video definition. The Samsung Galaxy A21 features a battery duration that's just as good as the battery performance in Asus ROG Phone.
Although Asus ROG Phone is a better device, it costs a lot more than Samsung Galaxy A21, and it doesn't have such a good relation between it's price and quality as the Samsung Galaxy A21. So if you want that extra specs and features, you can buy Asus ROG Phone, but if you don't you can save some dollars and get the Samsung Galaxy A21, giving up some specifications.
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