Compare phones
| Global Score | |
| 72.1 | 79 |
| Basic Information | |
| Alcatel | Xiaomi |
| Windows 10 Mobile | Android 11, 10 |
| 2016-11-10 | 2020-04-07 |
| 6.05 x 2.97 x 0.28 inches | 6.53 x 3.02 x 0.35 inches |
| 5.36 ounces | 7.37 ounces |
| Black | Aurora blue, Glacier white and Interstellar grey |
| Glass and Metal | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 249.00 |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| AMOLED | IPS LCD |
| 401 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | Qualcomm Snapdragon 720G SM7125 chipset |
| Kryo, 64-bit (Quad-Core 2150 MHz) processor | Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 530 GPU | Adreno 618 GPU |
| 8.91 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 21.00 MP + 8.00 MP | 48.00 MP + 16.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| 0.42 inches (1/2.4") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.12 | 11.55 |
| 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 HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | 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 Alcatel Idol 4S with Windows, getting a overall score of 79 against 72.1. The Xiaomi Redmi Note 9S has Android 11 operating system, while Alcatel Idol 4S with Windows works with Windows 10 Mobile operating system. Even though the Xiaomi Redmi Note 9S is noticeably newer than Alcatel Idol 4S with Windows, it is thicker and much heavier.
Xiaomi Redmi Note 9S has a display that is very similar to the display in Alcatel Idol 4S with Windows, because although the Xiaomi Redmi Note 9S has a quite worse display pixels density, it also counts with a little higher resolution of 1080 x 2400px and a larger screen. Xiaomi Redmi Note 9S counts with a little bit better hardware performance than Alcatel Idol 4S with Windows, and although they both have 4 GB of RAM memory, the Xiaomi Redmi Note 9S also has a higher number of cores.
The Alcatel Idol 4S with Windows and the Xiaomi Redmi Note 9S have similar memory capacity to install applications and games or saving photos and videos, they have exactly the same internal storage capacity and an external memory card slot that admits up to 512 GB. The Xiaomi Redmi Note 9S counts with a much better camera than Alcatel Idol 4S with Windows, and although they both have the same video quality and the same video frame rate, the Xiaomi Redmi Note 9S also has a larger aperture, a larger back camera sensor taking higher quality pictures and a lot more mega pixels camera.
Xiaomi Redmi Note 9S counts with a much better battery lifetime than Alcatel Idol 4S with Windows, because it has a 67 percent bigger battery size.
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