The Poco X4 GT's design is quite different from the rest of the Pocos in the family, and it's easy to distinguish from the X4 NFC and the X4 Pro as well. In fact, we see more resemblance with Oppo's Reno7 lineup due to the camera design. The handset is entirely made of plastic, with the back panel mimicking frosted glass. However, it's pretty easy to guess that it's not the real thing.
The front is now protected by Gorilla Glass 5, which is a downgrade from the Gorilla Glass Victus on the X3 GT. Unfortunately, there's no mention of ingress protection either - the X3 GT at least had IP53 certification. The added 3.5mm audio jack could be the reason.
Anyway, Xiaomi went for a more boxy design this time around, as the back panel is almost completely flat with more prominent and sudden curvatures towards the edges. The frame around the device is also completely flat, with matching buttons on the right side.
We got the Black option, which seems to repel nasty smudges and fingerprints. They are tough to spot and are easy to clean. As you'd expect, the surface isn't very grippy, though.
The camera bump sticks out quite a bit, and the lenses protrude even further, causing the phone to wobble when placed on a flat surface.
Back to the side frame - there's the volume rocker and the power key doubling as a fingerprint reader on the right side, both are easy to reach and well-placed. The power key should have been separated with some sort of indentation or offered another kind of tactile feedback since it's too flat and blends with the frame.
The bottom houses the USB-C connector, the SIM card tray and the grille for the loudspeaker. On the top, we have another grille that likely serves as an echo chamber for the left channel speaker, the IR blaster and the audio jack.
The front design is standard stuff. A centered punch-hole for the selfie camera, the cutout is relatively bigger than on an OLED panel, and side bezels are somewhat thick, especially the bottom one, but are not obtrusive.
For a 6.6-inch handset, the X4 GT is rather hefty measuring 8.9mm in thickness and tipping the scale at 200g. But that's not the main issue here. The boxy and sharp design makes the phone feel bigger than it actually is. Some gentler curves would have made ergonomics way better.