Apple’s iPhone Duo includes a video calling feature previously available only on Apple silicon Macs. Called Edge Light, it turns the borders of the foldable’s inner display into a virtual ring light, helping illuminate your face during calls in dimly lit rooms.
The feature works on the Duo’s 7.6-inch inner screen, using light from the display’s edges to brighten your face without requiring an external lamp.
For anyone who regularly makes FaceTime calls in poorly lit environments, it’s a practical addition that takes advantage of the foldable’s unusually large screen.
How Edge Light Works on iPhone Duo
Edge Light first arrived on Apple silicon Macs with macOS Tahoe 26.2, using the display’s borders to provide soft, even lighting during video calls.
The iPhone Duo brings that same idea to a smaller device, with its expanded screen providing enough illuminated surface area to help improve how users appear on camera.
Unlike a physical ring light, there’s no accessory to attach or position. Users can enable the feature when needed, making it particularly convenient for video calls away from a desk.
Interestingly, Apple hasn’t brought Edge Light to the iPad, despite several models having displays larger than the Duo’s.
The reason remains unclear. Some users have speculated that specific display hardware may be required, though Apple hasn’t confirmed any technical limitation that would prevent the feature from working on iPads.
Another Feature Built Around the Foldable Display
Edge Light joins the growing number of features designed to make the iPhone Duo’s larger screen useful beyond simply displaying more content.
Apple has also optimized more than 50 apps for the foldable, while Apple Pencil support is expected to arrive with iOS 27.2 next week.
Still, the $1,999 device comes with compromises. Early reviews have criticized the lack of Face ID, which Apple replaced with Touch ID, while limited inventory has made it hard for customers who missed pre-orders to get one.
Reports of severe supply constraints indicate that Apple retail employees have warned customers not to expect walk-in availability when the Duo goes on sale October 23.
Despite those shortages, Apple has reportedly increased component orders by 44%, suggesting demand for its first foldable iPhone is running ahead of initial expectations.
