Apple’s first foldable, the iPhone Duo, is generating early buzz for an opening-and-closing animation rather than its hinge or camera hardware. The effect carries an app from the external display to the 7.6-inch internal screen with blur, depth and scaling, aiming to make the device feel like one expanding surface instead of two displays handing off an app.
The iPhone Duo includes a hinge with more than 100 components, an under-display camera and a visible set of foldable-phone trade-offs, but the transition animation has become one of the most widely shared moments from its debut. Apple says the experience remains continuous as the handset opens and closes.
The crowd favorite is the animation when you open and close the phone.
Marques Brownlee
Brownlee separately posted the animation, which quickly spread across social platforms. Gizmodo’s Raymond Wong also highlighted the transition after handling the device, while Engadget’s Sam Rutherford called it “a work of art.”
I can’t get the transition animation out of my head.
Raymond Wong, Gizmodo
Hinge data becomes a software input
The visual flourish is tied to a broader software capability. Apple says iPhone Duo provides developers with continuous hinge-angle data, allowing interfaces to adapt while the phone is opened or closed. Apps can move controls to either side, avoid the crease and respond to the handset’s changing position.
That approach arrives after years of foldable development from established rivals. Samsung’s Galaxy Z Fold line is now at the Galaxy Z Fold8, while Google, Huawei, Honor and OPPO have also iterated on hinges, secondary displays and large-screen software. Samsung welcomed Apple to the category shortly before the iPhone Duo debut.
A Galaxy Z Fold8 user has already demonstrated that the core idea is not exclusive hardware. Using the phone’s hinge-angle sensor, the user recreated a similar transition across the Fold8’s two screens. The Reddit post received more than 14,000 upvotes, suggesting Samsung could potentially implement a comparable effect through software.
The iPhone Duo animation may prove to be a short-lived showcase feature, but it has put attention on how foldable interfaces handle the physical act of opening a device. Whether other foldable makers adopt similarly hinge-aware transitions is now the more consequential question.
