Compare phones
| Global Score | |
| 76.1 | 86.3 |
| Basic Information | |
| Samsung | Asus |
| Android 10 | -- |
| 2020-06-29 | 2020-07-23 |
| 6.61 x 3.02 x 0.32 inches | 6.73 x 3.07 x 0.39 inches |
| 6.81 ounces | 8.47 ounces |
| Black | Black glare |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 3) |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.6 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 390 pixels per inch |
| -- | 1000 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.9 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 865+ SM8250 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 3090 MHz) processor |
| 3 GB RAM | 12 GB RAM |
| PowerVR GE8320 GPU | Yes GPU |
| 9.27 | 9.81 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 16.00 MP + 13.00 MP | 64.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.59 inches (1/1.7") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.35 | 12.87 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| 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 | -- |
Comparison review
Asus ROG Phone 3 is much better than the Galaxy A21, getting a general score of 86.3 against 76.1. Asus ROG Phone 3 is a somewhat thicker and heavier phone than the Galaxy A21. The Asus ROG Phone 3 counts with just a little better processing power than Samsung Galaxy A21, and although they both have a Octa-Core processing unit, the Asus ROG Phone 3 also has a larger amount of RAM.
Asus ROG Phone 3 counts with an incredibly better display than Galaxy A21, because it has a lot higher 1080 x 2340 pixels resolution, a greater screen density and a quite larger display. Asus ROG Phone 3 takes much better photographs and videos than Samsung Galaxy A21, and although they both have a same size aperture, the Asus ROG Phone 3 also has a way better resolution back-facing camera, a lot larger sensor providing a much higher image quality and a way better 7680x4320 video quality.
The Asus ROG Phone 3 has just a bit more memory for games and applications than Galaxy A21, because although it has no SD memory card expansion slot, it also counts with 128 GB internal memory capacity. Asus ROG Phone 3 counts with a really longer battery performance than Samsung Galaxy A21, because it has a 50% bigger battery capacity.
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