Compare phones
| Global Score | |
| 71.6 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| Android 9.0 Pie, 8.1 Oreo | Android 11, 10 |
| 2018-12-20 | 2020-03-23 |
| 6.24 x 3.00 x 0.30 inches | 6.26 x 2.96 x 0.35 inches |
| 5.64 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 1520 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 267 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 632 SDM632 chipset | Exynos 9611 chipset |
| Kryo 250, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.66 | 11.74 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.46 | 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 | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| 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
Galaxy M21 has a score of 84.1, which is much better than Asus ZenFone Max (M2)'s 71.6 global score. Both phones in this review include Android operating system, but Galaxy M21 has an older 11 version while Asus ZenFone Max (M2) has Android 9.0 Pie. The Galaxy M21 body is newer than Asus ZenFone Max (M2)'s, although it's somewhat thicker and somewhat heavier.
Galaxy M21 counts with a little better processing power than Asus ZenFone Max (M2). They have a 4 GB RAM memory and a Octa-Core processing unit. The Samsung Galaxy M21 has a brighter display than Asus ZenFone Max (M2), because it has a much higher resolution of 1080 x 2340px, a quite bigger display and a lot more pixels per inch of screen.
Samsung Galaxy M21 counts with a lot better camera than Asus ZenFone Max (M2), because although it has a smaller aperture, and they both have the same 30 fps video frame rates and the same (4K) video definition, the Samsung Galaxy M21 also counts with a much more megapixels back facing camera. Asus ZenFone Max (M2) features a much better storage capacity for games and applications than Galaxy M21, and although they both have the same 64 GB internal memory capacity, the Asus ZenFone Max (M2) also has an external memory card slot that allows up to 1,95 TB.
The Galaxy M21 features a very superior battery lifetime than Asus ZenFone Max (M2), because it has 6000mAh of battery capacity instead of 4000mAh.
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