Xiaomi has already ruined Samsung's month by overtaking its rival to become the world's largest cell phone maker. And now this Chinese phone maker is about to rain on Samsung's Galaxy Unpacked parade and Galaxy Z Fold 3 launch.

The new Xiaomi Mi Mix 4 is not a foldable phone and is only available in China for now. However, the Mi Mix 4 steals the Camera-Under Panel (CUP) technology that is rumored to be the Galaxy Z Fold 3's best feature; whereas the Galaxy Z Fold 3 reportedly has an under-display camera of only 4MP, the Xiaomi Mi Mix 4 increases the resolution to 20 MP.

As reported by The Verge, CUP is "a technology that has gone through three major generations, five years, 60 patents, $77 million in investment, and hundreds of engineers to iterate."

However, as PhoneArena points out, the larger 2-micron sensor that is said to be in the Galaxy Z Fold 3 may capture more light, so we will have to see how well the two models perform in side-by-side tests.

The Xiaomi Mii Mix 4 should also outperform the Z Fold 3 in charging speeds, with the latter expected to be up to 25W; the Xioami phone offers 120W wired charging and 50W wireless charging. In fact, Xiaomi claims to be able to fully charge the phone within 15 minutes. This surpasses the OnePlus 9 Pro, the fastest charging device we tested, which takes about 30 minutes to fully charge at 65W.

Want more performance than the Z Fold 3's rumored Snapdragon 888 processor? The Mix 4 is stepping up to the Snapdragon 888 Plus chip with even faster clock speeds.

More bad news for Galaxy Z Fold 3 fans looking at the Xiaomi Mi Mix 4's specs: the Mix 4 has a 108MP main camera sensor (Samsung's foldable is rumored to be 12MP), a periscope zoom of 5x on the Xiaom versus the Fold's 2x, which should be larger.

Other highlights of the Mi Mix 4 include a 6.67-inch 120H OLED curved display, 8GB or 12GB of RAM, and three storage options of 128GB, 256GB, or 512GB. Admittedly, a curved display is not as cool as a display that folds in half. And the Galaxy Z Fold 3's rumored panel, at 7.6 inches, should be quite large when opened.

With a release date of August 16 and prices starting at about 4,999 yuan (about $770), it's clear that Xiaomi is trying to steal at least a little of Samsung's thunder. And it is very likely to succeed.