A recent comparison between the foldable **iPhone Duo** and the **Xiaomi 18 Fold** highlights differences in design, hardware, and software. The **iPhone Duo**, introduced during Apple's autumn event, features a 5.4-inch external screen that expands to a 7.6-inch internal screen. The **Xiaomi 18 Fold** has a 5.38-inch cover screen and a 7.58-inch foldable screen. Both devices are designed for content consumption, with wide formats that provide a viewing area similar in size to an A4 sheet in portrait orientation. The fold on both models is minimal, though Apple's is less noticeable. The **iPhone Duo** weighs 254 grams, while the **Xiaomi 18 Fold** is 35 grams lighter at 219 grams. The **Xiaomi 18 Fold** is also thinner when folded, at 10.7 mm compared to the **iPhone Duo**'s 11.3 mm, and thinner when unfolded, at 5 mm compared to the **iPhone Duo**'s 5.2 mm. In terms of dust resistance, the **iPhone Duo** is certified IP68, meaning it is fully protected against dust and water. The **Xiaomi 18 Fold** has IP58 and IP59 certifications, which offer protection against water but not against dust. The "6" in the IP68 standard indicates full dust resistance, which is crucial for foldable phones, as the gaps around the hinges can allow dust to enter. Apple’s internal screen on the **iPhone Duo** provides an uninterrupted display experience, featuring a nanotexture coating and an under-display camera (UDC) integrated into the inner panel. The **Xiaomi 18 Fold** has a more powerful 6,000 mAh battery and a triple rear camera system, including a 200 MP main camera, a 50 MP telephoto lens with 3.5x optical zoom, and a 50 MP ultra-wide-angle lens. In comparison, the **iPhone Duo** has two 48 MP cameras (main and ultra-wide-angle) but lacks a telephoto sensor. The **iPhone Duo** is equipped with the latest A20 Pro processor, based on a 2 nm platform, while the **Xiaomi 18 Fold** uses the Xring 03 chip. The **Xiaomi 18 Fold** supports 67 W fast charging but lacks built-in magnets or Qi 2.2 wireless charging. The **iPhone Duo** supports MagSafe for 25 W wireless charging and is compatible with magnetic accessories. Apple's software is praised for its well-thought-out user interface, including how content moves instantly from the cover screen to the main screen. The **Xiaomi 18 Fold**, on the other hand, can run more applications simultaneously, offering a more versatile multitasking experience. The **Xiaomi 18 Fold** is not available outside of China without complicated procedures, while the **iPhone Duo** is expected to arrive in stores on October 23. The **Xiaomi 18 Fold** is a significant competitor for the **iPhone Duo**, offering more versatile cameras, a larger battery, and a lighter build.