Compare phones
| Global Score | |
| 74.5 | 91.8 |
| Basic Information | |
| Asus | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11 |
| 2018-05-01 | 2021-01-29 |
| 6.02 x 2.98 x 0.30 inches | 5.97 x 2.80 x 0.31 inches |
| 5.82 ounces | 6.03 ounces |
| Blue and Silver | Gray, Phantom pink, Violet and White |
| Aluminum and Glass | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.2 inches | 6.2 inches |
| 2246 x 1080 pixels | 2400 x 1080 pixels |
| Super IPS+ LCD | Dynamic AMOLED |
| 402 pixels per inch | 424 pixels per inch |
| 550 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 636 SDM636 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 509 GPU | Adreno 660 GPU |
| 9 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | No SD card slot |
| 14.66 | 10.1 |
| Camera | |
| 12.00 MP + 8.00 MP | 12.00 MP + 10.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 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 | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S21 is much better than Asus ZenFone 5 (ZE620KL), having a 91.8 score against 74.5. Galaxy S21's body is a lot newer than Asus ZenFone 5 (ZE620KL)'s, although it is just a little bit thicker and just a little bit heavier. Both of these phones work with Android operating system, but the Galaxy S21 has the older 11 version and Asus ZenFone 5 (ZE620KL) has Android 9.0 Pie version.
Samsung Galaxy S21 has a little sharper screen than Asus ZenFone 5 (ZE620KL), and although they both have a same size display, the Samsung Galaxy S21 also has a much brighter display, a bit higher pixel number per inch in the screen and a slightly higher 1080 x 2400 resolution. Asus ZenFone 5 (ZE620KL) has a way bigger storage capacity to install applications and games or saving photos and videos than Samsung Galaxy S21, because although it has less internal storage capacity, it also counts with an external memory slot that allows up to 1,95 TB.
Galaxy S21 features a little bit better hardware performance than Asus ZenFone 5 (ZE620KL), and although they both have the same number of cores, the Galaxy S21 also has a greater amount of RAM. The Galaxy S21 features improved battery life than Asus ZenFone 5 (ZE620KL), because it has 4000mAh of battery capacity.
The Galaxy S21 features a much better camera than Asus ZenFone 5 (ZE620KL), and although they both have a 12 mega-pixels back facing camera and the same diafragm aperture, the Galaxy S21 also has a lot bigger back camera sensor and a lot better 7680x4320 video resolution.
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