Compare phones
| Global Score | |
| 79 | 89 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-04-07 | 2021-08-10 |
| 6.53 x 3.02 x 0.35 inches | 6.40 x 2.97 x 0.31 inches |
| 7.37 ounces | 7.94 ounces |
| Aurora blue, Glacier white and Interstellar grey | Ceramic Black, Ceramic White and Shadow Gray |
| Glass (Corning Gorilla Glass 5) | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | AMOLED |
| 393 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | Qualcomm Snapdragon 888+ SM8350-AC chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 108.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| -- | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (480 fps) (Full HD) slow motion video |
| 11.55 | 13.75 |
| 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 | |
| 5020mAh Li - Polymer Battery | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Mi Mix 4 is much better than the Xiaomi Redmi Note 9S, getting an 89 score against 79. Xiaomi Mi Mix 4's design is newer and thinner, but a bit heavier than the Xiaomi Redmi Note 9S. Both of these phones include the same Android 11 OS (Operating System). The Xiaomi Mi Mix 4 features a little better processing power than Xiaomi Redmi Note 9S, and although they both have 8 processing cores, the Xiaomi Mi Mix 4 also has a larger amount of RAM memory.
The Xiaomi Mi Mix 4 counts with a little more vivid display than Xiaomi Redmi Note 9S. Both have a higher amount of pixels per display inch, a same size screen and an equal 1080 x 2400px resolution. The Xiaomi Redmi Note 9S features a greater memory to install applications and games or saving photos and videos than Xiaomi Mi Mix 4, because although it has less internal storage capacity, it also counts with an external memory slot that allows up to 512 GB.
The Xiaomi Mi Mix 4 has a superior camera than Xiaomi Redmi Note 9S, because although it has a smaller aperture, it also counts with a much higher video resolution, a much bigger back-facing camera sensor providing a much higher image quality and a lot higher 108 mega pixels resolution back camera.
Xiaomi Redmi Note 9S counts with just a little bit longer battery duration than Xiaomi Mi Mix 4, because it has a 12% more battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.