Compare phones
| Global Score | |
| 74.2 | 83.2 |
| Basic Information | |
| Asus | Xiaomi |
| Android 8.0 Oreo, 7.0 Nougat | -- |
| 2017-10-30 | 2019-03-06 |
| 6.12 x 2.96 x 0.30 inches | 6.20 x 2.94 x 0.30 inches |
| 5.82 ounces | 6.10 ounces |
| Black, Green and White | Black, Blue and Purple |
| Metal | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 399.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super IPS+ LCD | AMOLED |
| 401 pixels per inch | 403 pixels per inch |
| 600 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 630 chipset | Qualcomm Snapdragon 855 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 508 GPU | Adreno 640 GPU |
| 9.18 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | No SD card slot |
| 14.66 | 10.1 |
| Camera | |
| 12.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 25.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 9.57 | 12.1 |
| 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 and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.28 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 |
| FM Radio | -- |
Comparison review
The Xiaomi Mi 9 has a score of 83.2, which is better than the Asus ZenFone 4's overall score of 74.2. Xiaomi Mi 9's body has the same thickness than Asus ZenFone 4, but it's just a bit heavier. Xiaomi Mi 9 features a little bit better processing power than Asus ZenFone 4, and although they both have 8 cores, the Xiaomi Mi 9 also has 2 GB more RAM memory.
Xiaomi Mi 9 counts with a screen that's just as good as the display in Asus ZenFone 4, and although the Xiaomi Mi 9 has a bit more pixels per inch in the display, a bigger display and a slightly higher 1080 x 2340 resolution, they both have the same screen brightness. Xiaomi Mi 9 counts with a very superior camera than Asus ZenFone 4, and although they both have the same video definition and the same aperture, the Xiaomi Mi 9 also has a back-facing camera with a much higher 48 megapixels resolution, faster 60 frames per second video frame rate and a way bigger back camera sensor providing a way higher image quality.
Asus ZenFone 4 counts with a much bigger storage capacity to store more apps and games than Xiaomi Mi 9, because although it has only 64 GB internal storage, it also counts with an external memory slot that holds up to 1,95 TB. The Xiaomi Mi 9 features a battery performance that's just as good as the battery lifetime in Asus ZenFone 4.
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