Compare phones
| Global Score | |
| 77.7 | 83 |
| Basic Information | |
| Samsung | Asus |
| Android 10 | Android 11 |
| 2020-06-19 | 2021-05-13 |
| 6.44 x 2.96 x 0.35 inches | 5.83 x 2.70 x 0.35 inches |
| 6.77 ounces | 5.96 ounces |
| Black, Blue, Red and White | Horizon Silver and Obsidian Black |
| -- | Aluminum and Glass (Corning Gorilla Glass 3) |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 5.9 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| TFT | AMOLED |
| 270 pixels per inch | 446 pixels per inch |
| -- | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 9.2 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 660 GPU |
| 9.09 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 64.00 MP + 12.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.78 | 12.65 |
| 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) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Nano SIM Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2, EDR |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Asus ZenFone 8 is just a bit better than Galaxy A21s, having an 83 score against 77.7. Asus ZenFone 8 is a somewhat lighter phone than the Galaxy A21s, but both are equally thin. Both devices in this comparison review work with Android operating system, but Asus ZenFone 8 has newer 11 version while Galaxy A21s has Android 10 version, counting with some extra features and optimized performance.
Asus ZenFone 8 counts with a way better looking screen than Galaxy A21s, because although it has a little bit smaller screen, it also counts with a way higher pixel number per inch of display and a way better 1080 x 2400 resolution. Asus ZenFone 8 counts with a little bit more storage capacity for games and applications than Samsung Galaxy A21s, because although it has no slot for an external memory card, it also counts with 128 GB internal memory.
Asus ZenFone 8 features a little bit better hardware performance than Galaxy A21s, and although they both have 8 cpu cores, the Asus ZenFone 8 also has 3 GB more RAM. The Asus ZenFone 8 has a better camera than Galaxy A21s, because it has a much higher video resolution, a lot higher 64 MP resolution back camera, a larger sensor taking better quality pictures and a bigger diafragm aperture for better low light photography and videos.
The Galaxy A21s has better battery performance than Asus ZenFone 8, because it has 5000mAh of battery capacity instead of 4000mAh.
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