Apple unveiled its first foldable, the iPhone Duo, a wide foldable with a 5.4" cover display and a 7.6" inner panel near a 4:3 aspect ratio. It enters a niche category currently occupied by the Samsung Galaxy Z Fold8, which is thinner (9.7mm vs 11.3mm) and lighter (201g vs 254g) with a 4,800mAh battery. The Duo offers stylus support and an under-display inner camera, features Samsung removed. Its camera setup includes a 48MP 1/1.28" main sensor and 48MP ultra-wide.

The Xiaomi 18 Fold launched this week with a 5.38" cover and 7.58" 3:2 inner display. It weighs 219g at 10.7mm thick and packs a 6,000mAh battery with 67W wired charging. Its camera array leads with a 200MP main, 50MP 3.5x telephoto, and 50MP ultra-wide.

The Huawei Pura X Max fits the form factor with a 5.4" cover and 7.7" 4:3 inner display, plus a 50MP 3.5x periscope lens and 5,300mAh battery. However, the Pura X series remains China-exclusive. Apple's influence suggests more wide foldables will arrive in 2027, though the original Google Pixel Fold nearly pioneered the category.