Compare phones
| Global Score | |
| 72.6 | 79 |
| Basic Information | |
| Asus | Xiaomi |
| Android 12 | Android 11, 10 |
| 2022-07-28 | 2020-04-07 |
| 5.77 x 2.68 x 0.36 inches | 6.53 x 3.02 x 0.35 inches |
| 5.96 ounces | 7.37 ounces |
| -- | Aurora blue, Glacier white and Interstellar grey |
| -- | 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 |
| Super AMOLED | IPS LCD |
| 446 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 7.7 | 8 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen1 SM8475 (4 nm) chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 730 GPU | Adreno 618 GPU |
| 6.21 | 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 | |
| 50.00 MP + 12.00 MP | 48.00 MP + 16.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 14.40mm focal length | -- |
| 0.64 inches (1/1.56") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.43 | 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 | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4300mAh Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.16 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | 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
The Xiaomi Redmi Note 9S has a global score of 79, which is slightly better than Asus Zenfone 9's score of 72.6. Both devices in our current comparison work with Android OS, but the Xiaomi Redmi Note 9S has the previous 11 version while Asus Zenfone 9 has Android 12. The Xiaomi Redmi Note 9S construction is a little bit thinner than Asus Zenfone 9, but it is heavier and was released many years before.
The Xiaomi Redmi Note 9S has a much better processing power than Asus Zenfone 9, although it has a smaller amount of RAM memory, they both have the same number of cores. The Xiaomi Redmi Note 9S has a little more vivid screen than Asus Zenfone 9, because although it has a little inferior pixel amount per inch in the screen, and they both have exactly the same resolution of 1080 x 2400, the Xiaomi Redmi Note 9S also counts with a little bit larger screen.
The Asus Zenfone 9 has a bit better camera than Xiaomi Redmi Note 9S, because although it has a tinier aperture which is not nice for low-light photos and videos, it also counts with a way better 7680x4320 video definition, a camera with a better 50 megapixels resolution and a much bigger back camera sensor capturing way better quality photographs and videos.
The Xiaomi Redmi Note 9S counts with a bigger memory capacity for games and applications than Asus Zenfone 9, because although it has 0 less internal memory, it also counts with a slot for external memory cards that allows a maximum of 512 GB. Xiaomi Redmi Note 9S features superior battery lifetime than Asus Zenfone 9, because it has 5020mAh of battery capacity.
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