Compare phones
| Global Score | |
| 71.8 | 79 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 6.0 Marshmallow | Android 11, 10 |
| 2017-02-14 | 2020-04-07 |
| 5.94 x 2.99 x 0.33 inches | 6.53 x 3.02 x 0.35 inches |
| 5.82 ounces | 7.37 ounces |
| 16 777 216 | Aurora blue, Glacier white and Interstellar grey |
| Metal | Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 145.00 | $ 249.00 |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | IPS LCD |
| 401 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 11.74 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.02 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4100mAh Li - Polymer Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Redmi Note 9S has a global score of 79, which is better than Xiaomi Redmi Note 4X's general score of 71.8. Both of these phones use Android OS (operating system), but the Xiaomi Redmi Note 9S has older 11 version while Xiaomi Redmi Note 4X has Android 6.0 Marshmallow version. Xiaomi Redmi Note 9S's design is extremely newer, but a bit thicker and a lot heavier than Xiaomi Redmi Note 4X.
Xiaomi Redmi Note 9S counts with a screen that is very similar to Xiaomi Redmi Note 4X's display, because although the Xiaomi Redmi Note 9S has a quite lower pixel amount in each inch of display, it also counts with a bit higher resolution of 1080 x 2400px and a larger screen. Xiaomi Redmi Note 9S features a much bigger storage for applications and games than Xiaomi Redmi Note 4X, because it has a slot for an external memory card that holds up to 512 GB and 32 GB more internal memory.
The Xiaomi Redmi Note 9S features a bit superior processing unit than Xiaomi Redmi Note 4X, and although they both have 8 cores, the Xiaomi Redmi Note 9S also has 1 GB more RAM. The Xiaomi Redmi Note 9S features improved battery performance than Xiaomi Redmi Note 4X, because it has a 5020mAh battery capacity.
Xiaomi Redmi Note 9S captures much better photos and videos than Xiaomi Redmi Note 4X, because it has a lot higher video definition, a bigger aperture for better low light photography and a way more megapixels back facing camera.
The Xiaomi Redmi Note 9S costs a lot more than the Xiaomi Redmi Note 4X, but you can get a better phone for that few more dollars.
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