Compare phones
| Global Score | |
| 76.2 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| -- | Android 11, 10 |
| 2017-02-15 | 2020-03-23 |
| 6.07 x 3.03 x 0.31 inches | 6.26 x 2.96 x 0.35 inches |
| 6.00 ounces | 6.63 ounces |
| Black, Pink and Silver | Midnight blue and Raven black |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 401 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 625 8953 chipset | Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 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 |
| 9.09 | 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 | |
| 12.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 25.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 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 |
| 9.68 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 4.2, EDR | 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 general score of 84.1, which is better than the Asus ZenFone 3 Zoom's global score of 76.2. Although the Galaxy M21 is way newer than the Asus ZenFone 3 Zoom, it is a little heavier and somewhat thicker. The Asus ZenFone 3 Zoom has a slightly better looking screen than Samsung Galaxy M21, because although it has a little smaller display, a little worse 1080 x 1920 pixels resolution and a just a bit lower pixels density, it also counts with a quite more brightness.
Galaxy M21 features a bit superior processor than Asus ZenFone 3 Zoom. Both of them have the same number of cores and 4 GB of RAM. Asus ZenFone 3 Zoom features a much bigger storage capacity for games and applications than Samsung Galaxy M21, because it has 128 GB internal memory capacity and a slot for an SD memory card that holds a maximum of 1,95 TB.
The Galaxy M21 shoots much clearer photos and videos than Asus ZenFone 3 Zoom, because although it has a smaller aperture which is not favorable for low-light captures, and they both have the same video frame rates and the same 3840x2160 video quality, the Galaxy M21 also counts with a way higher 48 MP resolution back facing camera and a way bigger sensor providing a way better image quality.
The Samsung Galaxy M21 features improved battery duration than Asus ZenFone 3 Zoom, because it has a 6000mAh battery capacity.
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