The POCO X3 supports dual SIMs and runs Android 10-based MIUI 12 with POCO Launcher 2.0 on top out of the box. The handset sports a 6.67-inch FHD+ display that bears a 120Hz refresh rate, 240Hz touch sampling rate, a centered punch-hole cutout, and Gorilla Glass 5 protection. The phone supports HDR10 and Widevine L1 certification. Under the hood, the phone rocks the new octa-core Qualcomm Snapdragon 732G SoC coupled with Adreno 618 GPU, up to 8GB RAM and 128GB storage that is further expandable via a microSD card.
The POCO X3 packs a quad-camera setup at the back consisting of a 64MP Sony IMX682 primary sensor, a 13MP ultra-wide-angle lens, and a couple of 2MP sensors for depth and macro shots. The cameras are backed by features like AI Skyscaping, Pro mode, Gold Vibes mode, Cyberpunk mode, and so on. At the front, the handset features a 20MP front-facing camera for selfies and video calling. There is a side-mounted fingerprint sensor for security and the phone is equipped with dual stereo speakers.