iPhone Duo 2 Face ID Testing Begins: Under the Cover Screen, Gurman Reports
Apple is already testing iPhone Duo 2 Face ID prototypes that hide the sensor and camera beneath the cover screen, according to Mark Gurman, and the report answers a question every first Duo buyer has asked: why does a $1,999 flagship foldable unlock with a fingerprint instead of your face?
The first iPhone Duo went on sale on October 23, 2026, priced at $1,999 in the US and €2,299 in Germany, and it sold out quickly. It unlocks with Touch ID built into the power and wake button, the same approach Apple uses on the iPad, and it has no Face ID at all.
Gurman described the new testing on Bloomberg’s Power On podcast, as reported by ExtremeTech on October 23, 2026. The prototypes under test move the Face ID sensor and camera under the cover screen, the outer display you see when the phone is folded shut, instead of placing them in a visible cutout. That placement is the heart of the iPhone Duo 2 Face ID story: face unlock with no hole in either display.
◆ DUO FACE ID FILE
PETATECH24 · APPLE DESK
The Foldable File
DUO 1 VS DUO 2 PROTOTYPE
What changes, and what is only reported so far
| DETAIL | IPHONE DUO (ON SALE) | IPHONE DUO 2 FACE ID PROTOTYPE |
|---|---|---|
| Unlock method | Touch ID, power button | Face ID, under cover screen |
| Face ID hardware | None | Sensor plus camera, reported |
| Status | On sale since Oct 23, 2026 | Prototype testing, reported |
| Base price | $1,999 US / €2,299 DE | Not announced |
* Prototype details are Gurman-reported, not confirmed by Apple.
◆ END OF REPORT ◆
Key Takeaways
- iPhone Duo 2 Face ID prototypes put the sensor under the cover screen, Gurman reports.
- The first Duo uses Touch ID because the thin chassis left too little room for depth-sensing parts.
- No price, hinge, display, camera or thickness details have been reported for the successor.
- The only timing language in the report is a two to three year window, with no guarantee the technology ships.
iPhone Duo 2 Face ID: Why the Cover Screen Changes Everything
The thin chassis is the whole reason the first Duo lacks Face ID. A Face ID system needs a depth-sensing array, and Apple reportedly left it out because the foldable body could not fit those components. The iPhone Duo 2 Face ID approach moves the hardware behind the display itself, where it can see through the screen.
That is similar in spirit to the under-display infrared sensor approach Apple has used on the iPhone 18 Pro line, where the sensing hardware works from beneath the panel rather than from a notch or a pill-shaped cutout. On a foldable, the cover screen is the natural home for it: the display you look at first when the phone is closed.
There is a catch. Under-display sensors see through pixels, which can cost accuracy, and Apple has refused to ship face unlock it considers second rate. The iPhone Duo 2 Face ID prototypes must therefore match standard iPhone Face ID, or Apple will keep them on the shelf.
Read More: iPhone Duo 2 Prototypes Test Under-Display Face ID, Gurman Reports
Why You Should Care
For Duo owners, the missing feature is felt every day. Touch ID works, but every other modern iPhone unlocks with a glance. If iPhone Duo 2 Face ID ships, the foldable would finally match the rest of the iPhone line on its most-used interaction.
For buyers still deciding, the report is a reason to think, not a reason to wait. The first Duo is on sale now, and a reported prototype is not a product. Buy it for what it is, a Touch ID foldable, and treat future face unlock as a bonus that may never arrive.
◆ FACE ID HOUSING
PETATECH24 · APPLE DESK
The Foldable File
HOW FACE ID HAS BEEN HOUSED
From the notch to beneath the display
| APPROACH | HARDWARE LOCATION | EXAMPLE | STATUS |
|---|---|---|---|
| Notch | Visible cutout, top | Older iPhones | Shipping for years |
| Dynamic Island | Pill cutout, top | Recent iPhones | Current |
| Under-display IR | Beneath the panel | iPhone 18 Pro approach | Reported approach |
| Under cover screen | Beneath outer display | Duo 2 prototype | Reported testing |
* IR means infrared, the light Face ID uses to map a face.
◆ END OF REPORT ◆
iPhone Duo 2 Face ID: What We Still Do Not Know
Almost everything else about the successor is unknown. No price has been reported, and no hinge, display, camera or thickness details appear in the report. The iPhone Duo 2 Face ID testing is the only concrete claim, and even that is prototype work, which is the earliest stage of hardware development.
Timing is deliberately vague. The source gives no launch date and no fall 2027 window; its only timing language is that under-display Face ID could solve the hardware constraint in a future model within the next two to three years. It also cautions that companies often test technologies that never reach the market, so there are no guarantees this ships at all.
Resale chatter around the first Duo deserves the same discipline. Confirmed resales peaked at $5,000 for a 2TB Night Sky unit sold on October 16, and higher figures circulating online are asking prices, which are listings, not sales.
Read More: iPhone Duo Review Verdict: Brilliant Screen, Heavy Compromises
◆ CLAIM CHECK
PETATECH24 · APPLE DESK
The Foldable File
REPORTED VS CONFIRMED VS UNKNOWN
Sorting the Duo 2 report with care
| CLAIM | STATUS | DETAIL |
|---|---|---|
| Prototypes under testing | Reported (Gurman) | Sensor under cover screen |
| Thin chassis blocked Duo 1 Face ID | Reported | Depth parts needed room |
| Duo 2 launch timing | Unknown | Only a 2 to 3 year window |
| Duo 2 price, hinge, cameras | Unknown | Nothing reported |
* Apple has confirmed nothing about a Duo successor.
◆ END OF REPORT ◆
What Happens Next
The next signals will come from further reporting, not from Apple, which does not comment on unannounced products. If the prototypes progress, expect supply chain reports and further Gurman notes on whether the hardware met Apple’s accuracy bar. If the reports go quiet, that is itself a signal the technology stayed in the lab.
For now, the honest summary is narrow but interesting: Apple is testing a fix for the Duo’s most obvious omission, it has a plausible place to put it, and the clock on it runs in years, not months.
Read More: iPhone Duo Hits Stores Friday, but Walk-In Stock Is Limited
FAQ
Does the iPhone Duo 2 have Face ID?
Not as a product. iPhone Duo 2 Face ID exists only as reported prototype testing, according to Gurman. Apple has confirmed nothing about a successor.
Why did the first iPhone Duo skip Face ID?
The thin chassis reportedly left too little room for the depth-sensing components, so Apple used Touch ID in the power button instead.
When could iPhone Duo 2 Face ID arrive?
The report’s only timing language is a window of two to three years, and it warns that tested technology often never ships. Treat any specific launch date you see elsewhere as speculation.
Would Face ID sit under the inner folding display?
No, according to the report. The prototypes place the sensor and camera under the cover screen, the outer display, not the inner folding panel.
Should I wait for the Duo 2 before buying?
Only if you are happy waiting years on an unconfirmed feature. The first Duo is on sale now with Touch ID, and the sensible way to buy it is on what it does today.
The Takeaway
The iPhone Duo 2 Face ID report is exciting precisely because it is so specific about the one thing that matters: where the sensor would go. An under-cover-screen sensor solves the thin-chassis problem that forced the first Duo onto Touch ID.
But specificity about placement is not a promise about shipping. Two to three years is a long window, prototype testing is the earliest stage, and Apple has killed better ideas than this one. This story is worth watching, and it is worth exactly that much skepticism too.
Sources
- ExtremeTech, Apple is reportedly already working on the iPhone Duo 2, October 23, 2026, reporting Mark Gurman on Bloomberg’s Power On podcast.
- Apple, official product pages and announcements.
- PetaTech24, earlier coverage of the Duo 2 prototype report.
