A leaker has activated Apple's upcoming three-item Dynamic Island mode inside the iOS 27 simulator, offering the first video demonstration of the new iPhone 18 Pro feature. The leaker, known as pdfu, posted a video showing the ‌Dynamic Island‌ toggling between three simultaneous Live Activi ties, matching what Bloomberg's Mark Gurman described in his report earlier today. "The new ‌Dynamic Island‌ with 3 items is already supported in ‌iOS 27‌," pdfu wrote. Great reporting from @markgurman. The new Dynamic Island with 3 items is already supported in iOS 27. Here's what it looks like.The code requires a sensor region less than 100 layout points wide, or below 16.57 mm for this new mode. iPhone 17 Pro was 20.76 mm. https://t.co/jZshu4rFXx pic.twitter.com/mL46rcEirh— pdfu (@itspdfu) September 9, 2026 According to pdfu, the underlying code requires a sensor region less than 100 layout points wide to enable the new mode, or below 16.57mm. Layout points are Apple's device-independent unit for describing on-screen dimensions, and they scale differently depending on a display's resolution. By comparison, pdfu notes that the sensor region on the current iPhone 17 Pro measures 20.76mm, meaning Apple would need to shrink the hardware by roughly 20% to unlock the new software behavior. The ‌iPhone 18 Pro‌ and ‌iPhone 18 Pro‌ Max have been rumored to feature a smaller ‌Dynamic Island‌ for months, but reports about support for a third, additional ‌Dynamic Island‌ Live Activity is new. Since the iPhone 14 Pro launched in 2022, the ‌Dynamic Island‌ has only supported two Live Activities, so adding a third seems like a worthwhile way to demonstrate the utility of shrinking the region.Related Roundup: iPhone 18 ProTag: Dynamic IslandThis article, "Leaked Video Shows iPhone 18 Pro's 3-in-1 Dynamic Island in Action" first appeared on MacRumors.comDiscuss this article in our forums ...read more read less