Quick Answer
Apple is testing iPhone Duo 2 prototypes with Face ID beneath the outer display, according to Mark Gurman.
The feature remains in development and is not guaranteed to reach the next model.
ZEERA’s view: the second Duo’s biggest opportunity is to refine the first generation’s everyday compromises.
Alongside authentication, the priorities are telephoto zoom, crease visibility, fingerprint residue, app layouts and inner-camera quality.
Those five areas are an improvement agenda, rather than a confirmed Duo 2 feature list.
What Did Gurman Say About iPhone Duo 2 Face ID?
In Power On, during his iPhone Duo discussion with Andru Edwards, Mark Gurman said Apple already has Duo 2 prototypes with an under-display Face ID sensor and camera on the outside screen. That points to a possible return to facial authentication for users moving from a conventional iPhone.
The location matters: this is an outer-display prototype. It does not establish Face ID coverage when using the unfolded inner screen, or whether Apple would retain Touch ID alongside it. Gurman’s comments also leave room for the change to arrive in a later generation. A 2027 launch with Face ID is a possibility, rather than a locked-in release plan.
Why the Second Duo Should Focus on Filling the Gaps
The first iPhone Duo delivers the fundamental change: a phone that opens into a larger workspace. The next generation has a different opportunity—make that experience easier to choose without giving up familiar flagship features.
ZEERA has already covered the first model’s camera compromises, display surface and uneven app experience. Read together, those articles suggest a practical direction for Duo 2: keep the useful folding design and remove more of the friction around it. Face ID testing fits that direction, although it only addresses one part of the experience.
A Dedicated Telephoto Camera Would Make Duo More Versatile
The missing camera option
The first Duo combines Main and Ultra Wide rear cameras. Its 2x optical-quality option comes from the Main camera; it does not have a separate telephoto lens. That leaves a gap for people who regularly photograph distant subjects, concerts or details across a street.
A dedicated telephoto would expand the camera system’s useful range. The challenge is fitting the optics into a thin folding body. A meaningful upgrade would deliver better distant detail in real photographs, rather than simply a larger digital-zoom number. There is no established Duo 2 telephoto specification to list yet.
The Inner Display Needs Better Crease and Smudge Control
Make the fold less distracting in more lighting
ZEERA’s earlier explanation of why the iPhone Duo crease is still there separates the physical fold from how strongly it catches your eye. The matte nano-texture surface softens reflections, making the remaining contour harder to notice.
For Duo 2, the useful goal would be a flatter-looking and flatter-feeling center across ordinary lighting conditions, while retaining clear text and comfortable touch response. A less conspicuous reflection is valuable, but it is only one part of display quality.
Keep the anti-glare benefit and make cleaning easier
In ZEERA’s nano-texture cover-layer analysis, Mediastorm’s comparison showed that some sweat, skin oils and cosmetic residue could be harder to wipe away. That is a more specific concern than saying every fingerprint is permanent or difficult to remove.
An improved surface would preserve reflection control while resisting oily patches and cleaning more easily after normal handling. For a screen you touch throughout the day, that could matter as much as how clean it looks in a launch photograph.
App Adaptation Could Be the Biggest Everyday Upgrade
ZEERA’s six-mode app ecosystem analysis explains why a bigger panel alone is not enough. Apps have to work across both displays, different orientations and partially folded positions.
The improvements to watch are practical: useful wider layouts, reachable controls, keyboards that leave room for content, and transitions that keep your place when you open or rotate the phone. Better developer support and more time to refine apps could make a second-generation Duo feel considerably more mature. Some of that progress could also reach the first Duo through iOS and app updates.
The Inner Camera Needs a Clearer Picture
The first Duo’s under-display FaceTime camera keeps the large screen visually cleaner, but early footage highlighted soft detail and haze. The camera area can also remain visible against bright, uniform content.
A worthwhile Duo 2 upgrade would improve faces, low-light calls and the appearance of the camera area itself. More pixels alone would not answer those concerns: the picture has to remain clear after light passes through the display. This is a separate challenge from putting Face ID beneath the outer screen.
Should You Wait for iPhone Duo 2?
If Face ID or a dedicated telephoto camera is essential to you, buying the first Duo means accepting their absence. Waiting gives you the opportunity to evaluate the next model once its hardware is known, without treating a prototype or a wish list as a purchase promise.
If the current folding screen already makes your reading, documents or multitasking easier, the first model can still have a clear purpose. The useful question is how well it handles your daily tasks today. ZEERA’s expectation is that a successful second generation would preserve those strengths and make fewer compromises around them.
FAQ
Could an iOS update add Face ID to the first iPhone Duo?
No. Face ID needs the appropriate sensing hardware. A software update cannot turn the first Duo’s existing front cameras into a Face ID system.
Will first-generation iPhone Duo cases fit Duo 2?
Compatibility will depend on the final dimensions, camera layout, buttons and hinge design. Choose a case listed for your exact phone model once those details are available.
Source: Mark Gurman’s Power On episode, “iPhone Duo Review + Pre-Order Problems with Andru Edwards.” First-generation hardware reference: Apple’s iPhone Duo announcement. Analysis updated October 23, 2026.
Related Reading
- iPhone Duo Review Hub: Specs, Problems and Real-World Tests
- Why the iPhone Duo Inner Camera Looks Soft
- iPhone Duo Crease: Still There, Just Harder to See
- What Nano-Texture Film Removal Reveals About the Crease
- Nano-Texture Cover Layer: Surface Wear and Cleaning
- App Optimization: Six Modes and an Uneven Experience
- Is iPhone Duo Worth $2,000? The Main Compromises
