Compare phones
| Global Score | |
| 75.5 | 77.7 |
| Basic Information | |
| Asus | Samsung |
| Android 8.0 Oreo, 7.1 Nougat | Android 10 |
| 2017-10-30 | 2020-06-19 |
| 6.18 x 2.98 x 0.30 inches | 6.44 x 2.96 x 0.35 inches |
| 6.17 ounces | 6.77 ounces |
| Black and White | Black, Blue, Red and White |
| Glass and Metal | -- |
| Scratch-Resistant Glass | -- |
| $ 599.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| AMOLED | TFT |
| 401 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Samsung Exynos 850 chipset |
| Kryo 280, 64-bit, 10 nm (Octa-Core 2450 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 540 GPU | Mali-G76 GPU |
| 9.45 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.66 | 9.84 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 13.00 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 | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.68 | 10.78 |
| 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 | |
| 3600mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy A21s is a bit better than the Asus ZenFone 4 Pro, with a global score of 77.7 against 75.5. The Galaxy A21s is a much newer cellphone than the Asus ZenFone 4 Pro, although it's somewhat thicker and a little heavier. These phones work with Android OS (operating system), but the Galaxy A21s has the older 10 version and Asus ZenFone 4 Pro has Android 8.0 Oreo.
Asus ZenFone 4 Pro counts with a better looking screen than Galaxy A21s, because although it has a little bit smaller display, it also counts with a higher resolution of 1080 x 1920 pixels and a better pixel count in each inch of display. Asus ZenFone 4 Pro has a much bigger memory capacity to install games and applications than Samsung Galaxy A21s, because it has a SD card slot that allows a maximum of 1,95 TB and 64 GB internal storage capacity.
The Asus ZenFone 4 Pro features a little bit better hardware performance than Samsung Galaxy A21s, and although they both have 8 processing cores, the Asus ZenFone 4 Pro also has 3 GB more RAM. The Samsung Galaxy A21s shoots much clearer photos and videos than Asus ZenFone 4 Pro, because although it has a smaller aperture which is worse for low-light captures and video, and they both have the same video definition and the same video frame rates, the Samsung Galaxy A21s also counts with a way larger camera sensor providing a much higher image quality and a way higher resolution back facing camera.
Galaxy A21s features a very superior battery performance than Asus ZenFone 4 Pro, because it has 5000mAh of battery capacity.
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