Compare phones
| Global Score | |
| 83.2 | 77.8 |
| Basic Information | |
| Xiaomi | Xiaomi |
| -- | Android 11 |
| 2019-03-06 | 2022-03-15 |
| 6.20 x 2.94 x 0.30 inches | 6.01 x 2.75 x 0.32 inches |
| 6.10 ounces | 6.21 ounces |
| Black, Blue and Purple | Blue, Grey and Purple |
| Glass (Corning Gorilla Glass 5) and Metal | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | AMOLED |
| 403 pixels per inch | 418 pixels per inch |
| 600 cd/m2 brightness | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 8.9 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Qualcomm Snapdragon 870 SM8250-AC (7 nm) chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 640 GPU | Adreno 650 GPU |
| 9.63 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 50.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 50.00mm focal length |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (60 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.1 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 10.6 |
| Battery Life | |
| 3300mAh Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | 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
The Xiaomi Mi 9 has a global score of 83.2, which is slightly better than Xiaomi 12X's 77.8 general score. The Xiaomi Mi 9 design is a little thinner and just a little bit lighter than Xiaomi 12X, although it was released 3 years before. Xiaomi 12X features a bit more vivid display than Xiaomi Mi 9, because although it has a bit smaller screen, it also counts with way more brightness, a bit more pixels per inch in the display and a little higher 1080 x 2400px resolution.
The Xiaomi 12X's memory capacity for applications and games is just as good as the Xiaomi Mi 9 one, they have equal 128 GB internal storage capacity. The Xiaomi Mi 9 has a much better performing processor than Xiaomi 12X, although it has 2 GB less RAM memory, they both have a Octa-Core CPU. The Xiaomi Mi 9 takes a bit better photos and videos than Xiaomi 12X, because although it has a much lower video quality and a lesser MP resolution back-facing camera, it also counts with a bigger diafragm aperture to capture better low light images and videos.
The Xiaomi 12X features superior battery life than Xiaomi Mi 9, because it has a 36 percent greater battery capacity.
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