Compare phones
| Global Score | |
| 86.3 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 11, 10 |
| 2020-07-23 | 2020-03-23 |
| 6.73 x 3.07 x 0.39 inches | 6.26 x 2.96 x 0.35 inches |
| 8.47 ounces | 6.63 ounces |
| Black glare | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass 3) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.6 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 390 pixels per inch | 403 pixels per inch |
| 1000 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.9 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 865+ SM8250 chipset | Exynos 9611 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 3090 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Yes GPU | Mali-G72 MP3 GPU |
| 9.81 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 64.00 MP + 24.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.87 | 11.55 |
| 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, Dual SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 6000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Asus ROG Phone 3 has a general score of 86.3, which is just a bit better than Galaxy M21's score of 84.1. Even though the Asus ROG Phone 3 is better than Galaxy M21, it must be noted that it is also much heavier and somewhat thicker. Asus ROG Phone 3 has a bit better looking screen than Samsung Galaxy M21, because although it has a bit lower display pixels density, and they both have exactly the same resolution of 1080 x 2340, the Asus ROG Phone 3 also counts with much more brightness and a little bit larger display.
Asus ROG Phone 3 has a bit faster CPU than Samsung Galaxy M21, and although they both have 8 cores, the Asus ROG Phone 3 also has more RAM memory. Samsung Galaxy M21 has a bigger memory for applications, games, photos and videos than Asus ROG Phone 3, because although it has 0 less internal memory capacity, it also counts with a SD extension slot that allows a maximum of 512 GB.
Asus ROG Phone 3 takes much better videos and photos than Samsung Galaxy M21, because it has a back-facing camera with a lot better resolution, a much better 7680x4320 video resolution, a bigger back camera sensor which provides a higher image and video quality and a bigger camera aperture. The Samsung Galaxy M21 has a battery performance that is just as good as Asus ROG Phone 3's battery life.
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