Compare phones
| Global Score | |
| 79 | 76.7 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-04-07 | 2021-05-27 |
| 6.53 x 3.02 x 0.35 inches | 6.23 x 2.96 x 0.33 inches |
| 7.37 ounces | 6.70 ounces |
| Aurora blue, Glacier white and Interstellar grey | Moonlight White, Neptune Blue and Space Black, |
| Glass (Corning Gorilla Glass 5) | Glass and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.3 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | IPS LCD |
| 393 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | MediaTek Helio G85 MT6769Z chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 618 GPU | Mali G52 MC2 GPU |
| 9.27 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 11.74 | 10.02 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 11.55 | 11 |
| 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+ (4G), HSDPA and HSPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 5020mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| 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
The Xiaomi Redmi Note 9S is a little bit better than Xiaomi Redmi Note 8 2021, with a 79 score against 76.7. These phones use the same Android 11 OS (operating system). Xiaomi Redmi Note 9S's body is older, just a little bit thicker and a bit heavier than Xiaomi Redmi Note 8 2021. Xiaomi Redmi Note 8 2021 counts with a bit better looking screen than Xiaomi Redmi Note 9S, because although it has a little bit worse resolution of 1080 x 2340 pixels and a quite smaller display, it also counts with a quite greater quantity of pixels in each display inch.
Xiaomi Redmi Note 9S features more memory capacity to install applications and games or saving photos and videos than Xiaomi Redmi Note 8 2021, and although they both have exactly the same 64 GB internal storage capacity, the Xiaomi Redmi Note 9S also has a slot for an SD memory card that allows up to 512 GB.
Xiaomi Redmi Note 9S counts with just a bit better hardware performance than Xiaomi Redmi Note 8 2021. Both of them have 4 GB of RAM and a Octa-Core CPU. Xiaomi Redmi Note 9S shoots a bit better photos and videos than Xiaomi Redmi Note 8 2021, and although they both have a same size sensor, the same resolution camera and a F1.8 diafragm aperture, the Xiaomi Redmi Note 9S also has a lot higher 3840x2160 (4K) video resolution.
The Xiaomi Redmi Note 9S counts with greater battery lifetime than Xiaomi Redmi Note 8 2021, because it has a 26 percent greater battery size.
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