Compare phones
| Global Score | |
| 74.5 | 76.1 |
| Basic Information | |
| Asus | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-05-01 | 2020-06-29 |
| 6.02 x 2.98 x 0.30 inches | 6.61 x 3.02 x 0.32 inches |
| 5.82 ounces | 6.81 ounces |
| Blue and Silver | Black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.2 inches | 6.5 inches |
| 2246 x 1080 pixels | 1600 x 720 pixels |
| Super IPS+ LCD | IPS LCD |
| 402 pixels per inch | 270 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 636 SDM636 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 509 GPU | PowerVR GE8320 GPU |
| 9 | 9.27 |
| 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 | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.39 inches (1/2.55") sensor | 0.33 inches (1/3.06") 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 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy A21 is a little bit better than Asus ZenFone 5 (ZE620KL), getting a 76.1 score against 74.5. Although the Samsung Galaxy A21 is incredibly newer than Asus ZenFone 5 (ZE620KL), it's heavier and a bit thicker. Both phones we compare here work with Android OS, but Samsung Galaxy A21 has an older 10 version and Asus ZenFone 5 (ZE620KL) has Android 9.0 Pie.
The Asus ZenFone 5 (ZE620KL) features a better looking display than Galaxy A21, because although it has a bit smaller screen, it also counts with a better pixel quantity per inch in the display and a much better 1080 x 2246 resolution. Asus ZenFone 5 (ZE620KL) counts with much more storage for games and applications than Samsung Galaxy A21, because it has 32 GB more internal memory and an external SD slot that allows a maximum of 1,95 TB.
The Galaxy A21 counts with a bit faster CPU than Asus ZenFone 5 (ZE620KL), although it has a lower amount of RAM memory, they both have 8 CPU cores. The Galaxy A21 features better battery life than Asus ZenFone 5 (ZE620KL), because it has a 21% bigger battery size. Asus ZenFone 5 (ZE620KL) captures just a bit better photographs and videos than Samsung Galaxy A21, because although it has a much lower resolution camera, and they both have the same aperture, the Asus ZenFone 5 (ZE620KL) also counts with a lot higher video definition and a larger sensor shooting better quality photographs and videos.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.