Compare phones
| Global Score | |
| 74.2 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| Android 15 | Android 11, 10 |
| -- | 2020-03-23 |
| -- | 6.26 x 2.96 x 0.35 inches |
| 8.01 ounces | 6.63 ounces |
| -- | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 1199.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.4 inches |
| -- | 2340 x 1080 pixels |
| OLED | Super AMOLED |
| -- | 403 pixels per inch |
| 2500 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 4.8 | 8.4 |
| Performance | |
| Snapdragon 8 Elite SM8750-AB (3 nm) chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 16 GB RAM | 4 GB RAM |
| Adreno 830 GPU | Mali-G72 MP3 GPU |
| 6.3 | 9.27 |
| Storage | |
| 512 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 17.6 | 11.74 |
| Camera | |
| 50.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.22 | 11.55 |
| Networks | |
| -- | Wi-Fi |
| -- | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7.6 | 6.7 |
| Battery Life | |
| 5800mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.44 | 7.52 |
| Other Features | |
| Bluetooth 5.3 | 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
Galaxy M21 has a global score of 84.1, which is better than the Asus ROG Phone 9 Pro's 74.2 general score. Both phones in this review work with Android OS (Operating System), but the Galaxy M21 has older 11 version while Asus ROG Phone 9 Pro has Android 15. The Galaxy M21 has a much better performing processing unit than Asus ROG Phone 9 Pro, although it has a lower amount of RAM, they both have a Octa-Core CPU.
The Galaxy M21 features an incredibly better display than Asus ROG Phone 9 Pro, although it has a lot more opaque screen and a quite smaller display. Samsung Galaxy M21 shoots a little bit better photographs and videos than Asus ROG Phone 9 Pro, although it has a lot tinier sensor capturing less light and duller colors, a less MP camera in the back and a worse video definition.
The Asus ROG Phone 9 Pro features a way bigger storage capacity for apps and games than Galaxy M21, because although it has no SD card slot, it also counts with 512 GB internal storage. The Samsung Galaxy M21 features just a little bit longer battery duration than Asus ROG Phone 9 Pro, because it has 6000mAh of battery capacity.
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