Compare phones
| Global Score | |
| 75.3 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 11, 10 |
| 2018-06-13 | 2020-03-23 |
| 6.02 x 2.98 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 5.82 ounces | 6.63 ounces |
| Blue and Silver | Midnight blue and Raven black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 499.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.4 inches |
| 2246 x 1080 pixels | 2340 x 1080 pixels |
| Super IPS+ LCD | Super AMOLED |
| 402 pixels per inch | 403 pixels per inch |
| 500 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 20.26 | 11.74 |
| Camera | |
| 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") 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 |
| 3.63 | 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, Dual 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 5.0 | 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 | FM Radio |
Comparison review
The Samsung Galaxy M21 has a general score of 84.1, which is better than Asus ZenFone 5z's 75.3 global score. The Samsung Galaxy M21 construction is newer than Asus ZenFone 5z's, although it is heavier and somewhat thicker. Asus ZenFone 5z features just a little better processing power than Galaxy M21, and although they both have 8 cpu cores, the Asus ZenFone 5z also has 4 GB more RAM.
The Asus ZenFone 5z counts with a bit more vivid screen than Galaxy M21, because although it has a little bit lower resolution of 1080 x 2246px, a little less pixels per inch in the display and a little bit smaller screen, it also counts with a little more brightness. The Asus ZenFone 5z has a much bigger memory to install games and applications than Galaxy M21, because it has 256 GB internal memory capacity and a SD memory card expansion slot that allows a maximum of 1,95 TB.
The Galaxy M21 features a lot better camera than Asus ZenFone 5z, because although it has slower video frame rate and a smaller camera aperture which is not favorable for low-light photography, and they both have the same (4K) video resolution, the Galaxy M21 also counts with a much bigger camera sensor.
Galaxy M21 has a way better battery lifetime than Asus ZenFone 5z, because it has an 82 percent bigger battery size.
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