Compare phones
| Global Score | |
| 79 | 83.2 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10 | -- |
| 2020-04-07 | 2019-03-06 |
| 6.53 x 3.02 x 0.35 inches | 6.20 x 2.94 x 0.30 inches |
| 7.37 ounces | 6.10 ounces |
| Aurora blue, Glacier white and Interstellar grey | Black, Blue and Purple |
| Glass (Corning Gorilla Glass 5) | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | AMOLED |
| 393 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | Qualcomm Snapdragon 855 chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 618 GPU | Adreno 640 GPU |
| 9.27 | 9.63 |
| 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 | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 11.55 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5020mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | 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 |
Comparison review
Xiaomi Mi 9 is a little bit better than Xiaomi Redmi Note 9S, getting an 83.2 score against 79. The Xiaomi Mi 9 is an older phone than Xiaomi Redmi Note 9S, but Xiaomi was able to build it lighter and thinner anyway. Xiaomi Mi 9 has a little more vivid screen than Xiaomi Redmi Note 9S, because although it has a little bit smaller screen and a little bit lower resolution of 1080 x 2340 pixels, it also counts with a bit more pixels per inch in the screen.
Xiaomi Redmi Note 9S counts with more storage for games and applications than Xiaomi Mi 9, because although it has 0 less internal memory, it also counts with a SD memory card expansion slot that allows a maximum of 512 GB. The Xiaomi Mi 9 counts with a bit faster CPU than Xiaomi Redmi Note 9S, and although they both have 8 CPU cores, the Xiaomi Mi 9 also has 2 GB more RAM memory.
The Xiaomi Redmi Note 9S features a much better battery life than Xiaomi Mi 9, because it has a 52% bigger battery size. Xiaomi Mi 9 captures just a bit better photographs and videos than Xiaomi Redmi Note 9S, and although they both have the same 3840x2160 video resolution, a F1.8 aperture, the same resolution camera and a 0.5 inches back camera sensor, the Xiaomi Mi 9 also has better video frame rate.
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