Compare phones
| Global Score | |
| 77.7 | 76.2 |
| Basic Information | |
| Samsung | Asus |
| Android 10 | -- |
| 2020-06-19 | 2017-02-15 |
| 6.44 x 2.96 x 0.35 inches | 6.07 x 3.03 x 0.31 inches |
| 6.77 ounces | 6.00 ounces |
| Black, Blue, Red and White | Black, Pink and Silver |
| -- | Metal |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 5.5 inches |
| 1600 x 720 pixels | 1920 x 1080 pixels (Full HD) |
| TFT | AMOLED |
| 270 pixels per inch | 401 pixels per inch |
| -- | 500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.5 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 625 8953 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-G76 GPU | Adreno 506 GPU |
| 9.09 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1,95 TB) external memory slot |
| 9.84 | 17.06 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 25.00mm focal length |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.78 | 9.68 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2, EDR |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A21s is just a bit better than Asus ZenFone 3 Zoom, getting a 77.7 score against 76.2. The Samsung Galaxy A21s design is much newer than the Asus ZenFone 3 Zoom's, but it's somewhat thicker and somewhat heavier. Asus ZenFone 3 Zoom features a much better looking display than Galaxy A21s, because although it has a little bit smaller screen, it also counts with a greater display pixel density and a better resolution of 1080 x 1920px.
The Asus ZenFone 3 Zoom features much more storage capacity to install applications and games than Galaxy A21s, because it has 128 GB internal memory capacity and a SD memory slot that supports a maximum of 1,95 TB. The Asus ZenFone 3 Zoom's processing unit is very similar to Samsung Galaxy A21s's processing unit, and although the Asus ZenFone 3 Zoom has a larger amount of RAM memory, they both have the same number of cores.
The Galaxy A21s captures better videos and photos than Asus ZenFone 3 Zoom, because although it has a smaller camera aperture, and they both have the same 30 frames per second video frame rates and the same 1920x1080 video definition, the Galaxy A21s also counts with a lot more MP camera in the back and a way larger back camera sensor shooting much higher quality photos and videos.
The Asus ZenFone 3 Zoom counts with a battery life that's very similar to Galaxy A21s's battery lifetime.
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