Compare phones
| Global Score | |
| 83 | 79 |
| Basic Information | |
| Asus | Xiaomi |
| Android 11 | Android 11, 10 |
| 2021-05-13 | 2020-04-07 |
| 5.83 x 2.70 x 0.35 inches | 6.53 x 3.02 x 0.35 inches |
| 5.96 ounces | 7.37 ounces |
| Horizon Silver and Obsidian Black | Aurora blue, Glacier white and Interstellar grey |
| Aluminum and Glass (Corning Gorilla Glass 3) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 249.00 |
| Display / Screen | |
| 5.9 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | IPS LCD |
| 446 pixels per inch | 393 pixels per inch |
| 1100 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 64.00 MP + 12.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.65 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4000mAh Nano SIM Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.2, EDR | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Asus ZenFone 8 is slightly better than Xiaomi Redmi Note 9S, having an 83 score against 79. Asus ZenFone 8's design has the same thickness than Xiaomi Redmi Note 9S, but it is lighter. Both of these phones use the same Android 11 operating system. The Asus ZenFone 8 has a bit faster processing unit than Xiaomi Redmi Note 9S, and although they both have 8 processing cores, the Asus ZenFone 8 also has more RAM.
The Asus ZenFone 8 counts with a sharper display than Xiaomi Redmi Note 9S, because although it has a little smaller screen, and they both have the same exact resolution of 1080 x 2400, the Asus ZenFone 8 also counts with a little more pixels per inch of screen. Asus ZenFone 8 features just a bit better camera than Xiaomi Redmi Note 9S, and although they both have a same size aperture, the Asus ZenFone 8 also has a lot more mega-pixels back-facing camera, a bigger sensor shooting higher quality photos and a much better video resolution.
The Xiaomi Redmi Note 9S features a greater storage for applications, games, photos and videos than Asus ZenFone 8, because although it has only 64 GB internal storage, it also counts with an external SD slot that allows up to 512 GB. Xiaomi Redmi Note 9S features greater battery lifetime than Asus ZenFone 8, because it has 5020mAh of battery capacity.
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