Compare phones
| Global Score | |
| 84.1 | 79.5 |
| Basic Information | |
| Samsung | Asus |
| Android 11, 10 | Android 14 |
| 2020-03-23 | 2024-01-08 |
| 6.26 x 2.96 x 0.35 inches | 6.45 x 3.02 x 0.35 inches |
| 6.63 ounces | 7.94 ounces |
| Midnight blue and Raven black | Phantom Black and Rebel Grey |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | OLED |
| 403 pixels per inch | 387 pixels per inch |
| 420 cd/m2 brightness | 2500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9.5 |
| Performance | |
| Exynos 9611 chipset | QualcommSnapdragon 8 Gen 3 SM8650-AB (3 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 4 GB RAM | 12 GB RAM |
| Mali-G72 MP3 GPU | Adreno 750 GPU |
| 9.27 | 6.21 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 48.00 MP + 20.00 MP | 50.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.64 inches (1/1.56") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 12.54 |
| 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) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 7.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.3 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy M21 has a score of 84.1, which is a little bit better than Asus ROG Phone 8's 79.5 score. The Galaxy M21 is a lighter phone than the Asus ROG Phone 8, but both of them have the same thickness. Both devices in our current comparison have Android operating system, but Galaxy M21 has the older 11 version and Asus ROG Phone 8 has Android 14.
Asus ROG Phone 8 has a better looking display than Galaxy M21, because although it has a little bit lower pixel density, it also counts with a bit higher resolution of 1080 x 2400, a little bit bigger screen and way more brightness. Galaxy M21 counts with a much greater processing power than Asus ROG Phone 8, although it has less RAM memory, they both have 8 CPU cores.
The Asus ROG Phone 8 shoots a bit better photos and videos than Galaxy M21, because it has a much higher video quality, a bigger camera aperture to capture better low light captures and videos, a much bigger sensor capturing lot higher quality videos and photos and a camera in the back with a higher 50 mega pixels resolution.
Asus ROG Phone 8 counts with a greater memory to store more games and applications than Galaxy M21, because although it has no external memory slot, it also counts with 192 GB more internal storage. The Samsung Galaxy M21 features a bit superior battery duration than Asus ROG Phone 8, because it has a 6000mAh battery size instead of 5500mAh.
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