The Xiaomi Mi 9's screen size is 6.39 inches with 1080 x 2340 pixels resolution.
There is a Qualcomm SDM855 Snapdragon 855 (7 nm) Octa-core 2.84 GHz processor (CPU).
The phone runs on the Android 9.0 Pie operating system (OS).
You can take photos or capture video with the phone's onboard 41+ megapixel camera.
There is also a secondary front facing camera with 20+ megapixels resolution.
Internal memory is 64/128 GB. No external card slot is available for expansion.
The phone is powered by a Lithium Polymer (Li-Pol), 3300 mAh battery. Xiaomi's performance ratings are 1412 minutes, 736 minutes Wi-Fi surfing.