Compare phones
| Global Score | |
| 74.5 | 77.7 |
| Basic Information | |
| Asus | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-05-01 | 2020-06-19 |
| 6.02 x 2.98 x 0.30 inches | 6.44 x 2.96 x 0.35 inches |
| 5.82 ounces | 6.77 ounces |
| Blue and Silver | Black, Blue, Red and White |
| Aluminum and Glass | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.2 inches | 6.5 inches |
| 2246 x 1080 pixels | 1600 x 720 pixels |
| Super IPS+ LCD | TFT |
| 402 pixels per inch | 270 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 636 SDM636 chipset | Samsung Exynos 850 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 509 GPU | Mali-G76 GPU |
| 9 | 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/1.80 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 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 9.79 | 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 | |
| 3300mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 Asus ZenFone 5 (ZE620KL), having a 77.7 score against 74.5. Both phones in this review include Android OS (Operating System), but the Galaxy A21s has 10 version while Asus ZenFone 5 (ZE620KL) has Android 9.0 Pie. Galaxy A21s's body is noticeably newer than Asus ZenFone 5 (ZE620KL)'s, although it is heavier and somewhat thicker.
Asus ZenFone 5 (ZE620KL) counts with a much better looking screen than Galaxy A21s, because although it has a quite smaller display, it also counts with a much better resolution of 1080 x 2246 and a higher display density. The Samsung Galaxy A21s features a little better processing power than Asus ZenFone 5 (ZE620KL), although it has a lower amount of RAM memory, they both have the same number of cores.
Asus ZenFone 5 (ZE620KL) counts with a much better memory to install games and applications than Samsung Galaxy A21s, because it has 64 GB internal memory capacity and a SD card slot that admits up to 1,95 TB. Galaxy A21s counts with a superior camera than Asus ZenFone 5 (ZE620KL), because although it has a smaller aperture which is not nice for low-light captures, and they both have the same video frame rates and the same 1920x1080 (Full HD) video quality, the Galaxy A21s also counts with a much larger camera sensor providing a much higher image quality and a camera with way more mega pixels.
Samsung Galaxy A21s features a way better battery life than Asus ZenFone 5 (ZE620KL), because it has a 5000mAh battery capacity.
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