Compare phones
| Global Score | |
| 72.1 | 76.6 |
| Basic Information | |
| Alcatel | Xiaomi |
| Windows 10 Mobile | Android 10 |
| 2016-11-10 | 2020-05-20 |
| 6.05 x 2.97 x 0.28 inches | 6.39 x 3.04 x 0.35 inches |
| 5.36 ounces | 7.02 ounces |
| Black | Forest green, Midnight gray and Polar white |
| Glass and Metal | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 283.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| AMOLED | IPS LCD |
| 401 pixels per inch | 396 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | MediaTek Helio G85 chipset |
| Kryo, 64-bit (Quad-Core 2150 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 530 GPU | Mali G52 MC2 GPU |
| 8.91 | 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 | |
| 21.00 MP + 8.00 MP | 48.00 MP + 13.00 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 | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.12 | 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 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 |
| -- | NFC |
| -- | 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 9 has an overall score of 76.6, which is a little bit better than the Alcatel Idol 4S with Windows's general score of 72.1. The Xiaomi Redmi Note 9 construction is newer, but thicker and a lot heavier than Alcatel Idol 4S with Windows. Xiaomi Redmi Note 9 counts with Android 10 OS, and Alcatel Idol 4S with Windows comes with Windows 10 Mobile OS.
Xiaomi Redmi Note 9 features just a bit better performance than Alcatel Idol 4S with Windows, because although it has a lower amount of RAM memory, it also counts with a larger number of cores (although slower). Alcatel Idol 4S with Windows and Xiaomi Redmi Note 9 feature incredibly similar screens, because although the Xiaomi Redmi Note 9 has a bit worse pixels density, it also counts with a slightly higher resolution of 1080 x 2340px and a bigger display.
The Xiaomi Redmi Note 9 counts with a slightly better camera than Alcatel Idol 4S with Windows, and although they both have the same video frame rates and the same 1920x1080 video definition, the Xiaomi Redmi Note 9 also has a bigger aperture, a bigger camera sensor which gives a better photo and video quality and a back facing camera with lot more mega-pixels.
The Alcatel Idol 4S with Windows has a quite bigger storage for games and applications than Xiaomi Redmi Note 9, and although they both have the same 64 GB internal memory capacity, the Alcatel Idol 4S with Windows also has a slot for an SD memory card that admits a maximum of 512 GB. Xiaomi Redmi Note 9 counts with a way better battery performance than Alcatel Idol 4S with Windows, because it has 5020mAh of battery capacity.
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