Compare phones
| Global Score | |
| 77.4 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 11, 10 |
| 2017-08-03 | 2020-03-23 |
| 6.25 x 3.06 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| 6.00 ounces | 6.63 ounces |
| Black | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 515 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Exynos 9611 chipset |
| Kryo, 64-bit (Quad-Core 2150 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 530 GPU | Mali-G72 MP3 GPU |
| 9 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 17.06 | 11.74 |
| Camera | |
| 23.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (24 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (30 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.23 | 11.55 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 7.52 |
| Other Features | |
| Bluetooth 4.2, EDR | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 is just a bit better than Asus ZenFone AR, having a global score of 84.1 against 77.4. Galaxy M21 is a a bit heavier device than the Asus ZenFone AR, but both are 0.35inches thick. The Galaxy M21 has a bit more powerful CPU than Asus ZenFone AR, because although it has 2 GB less RAM memory, it also counts with a larger number of cores.
The Asus ZenFone AR counts with a bit sharper display than Galaxy M21, because although it has a quite smaller display, it also counts with a higher resolution of 1440 x 2560px and a higher quantity of pixels per display inch. Galaxy M21 counts with a better camera than Asus ZenFone AR, and although they both have a F2 camera aperture and the same 3840x2160 (4K) video quality, the Galaxy M21 also has a way better resolution back facing camera, faster 30 fps video frame rates and a way larger sensor taking way higher quality videos and photos.
The Asus ZenFone AR has a much bigger storage for applications, games, photos and videos than Samsung Galaxy M21, because it has 128 GB internal storage and a slot for external memory cards that admits a maximum of 1,95 TB. The Galaxy M21 counts with a way better battery life than Asus ZenFone AR, because it has an 82% bigger battery capacity.
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