With the rollout of iOS 27.2, Apple has added two new features exclusive to the iPhone Duo: support for the Apple Pencil (USB-C model) and a lighting enhancement dubbed Edge Light for video calls.
Apple Pencil for Duo: sketch, annotate, note
The iPhone Duo now officially accepts input from the Apple Pencil (USB-C version only). This capability enables users to annotate PDFs and images, make sketches, or write notes by hand. The feature works on both the Duo’s outer and inner displays, making full use of the device’s dual-screen design.
This addition comes mere days after the device’s initial availability, confirming that Apple had planned this support but hadn’t activated it at launch. It expands the interaction options on the Duo, particularly for creative workflows or anyone who values handwritten input.
Edge Light: shining brighter in calls
The second exclusive new feature, Edge Light, brings a lighting ring around the Duo’s display during video chats. Compact when in “seated” mode—Apple’s term for the Duo folded like a laptop—Edge Light helps illuminate your face during video calls, improving visibility.
Edge Light isn’t limited to FaceTime. It also works with third-party video calling apps like Zoom, demonstrating Apple’s recognition that users rely on various platforms for communication. This enhancement aims to make video calling more usable in varied lighting without external accessories.
Why this matters
These features mark a rapid maturation for the iPhone Duo post-launch. Apple Pencil support plugs a gap many early users noticed; Edge Light aligns with trends of built-in lighting in foldable or dual-screen hardware to improve usability in less-than-ideal lighting conditions.
Expect the usual you’ll-need-latest-firmware caveat: iOS 27.2 is required. Users should verify they have the USB-C variant of the Apple Pencil, as other models aren’t supported. For Edge Light, performance may depend on ambient lighting and the Duo’s seated mode.
These additions underscore Apple’s commitment to refining Duo’s hardware now that it’s in users’ hands. With base features now shipping, look next for software optimizations, camera tweaks, and perhaps even more third-party app support tailored to the Duo’s screen layout.
