iPhone Duo — Review Day

Embargo lifted Wednesday, October 21, 2026 · Launches Friday, October 23 · $1,999+

iPhone Duo half-open in hand, from MKBHD's review

The Duo half-open, from MKBHD's review. Stills and GIFs on this page are pulled from the actual review videos.

The consensus

Loved

  • The matte nano-texture inner display — the crease is effectively hidden in normal use
  • Hinge feel and build: variable resistance, titanium rails, IP68
  • Multitasking that explains itself — split view, paired apps, tent/StandBy modes
  • Polish: open/close animations teach the form factor

Mixed

  • Battery — tests range from “needs a midday top-up” (Verge) to 40% left at bedtime (Engadget)
  • Heat — Verge says hot; 9to5Mac says slightly warm, no performance cost
  • Touch ID in the power button — works, but everyone reached for Face ID first
  • Matte screen trades a little richness in dark film scenes; fingerprints wipe off harder

Knocked

  • Weight: 254 g — the single most common complaint (5 g more than the 18 Pro Max)
  • No telephoto — 2x is a sensor crop; main camera sits below the 18 Pro, near the iPhone Air
  • 5.4″ cover screen feels cramped; under-display FaceTime camera is weak in low light
  • Third-party apps not yet adapted — black bars on the big screen

Battery, tested every way

OutletTestResult
Tom's GuideWeb surfing rundown13h 20m — 3+ hrs longer than Galaxy Z Fold 8, well short of 18 Pro Max (17.5h)
EngadgetLocal video playback28h 48m — ~40% left at the end of normal days
GizmodoReal-world use5.5–7.5 hrs screen-on time
MKBHDMixed open/closed useEnds the day with 30%+ remaining; efficiency on par with iPhone 17 Pro
9to5MacNormal days, no formal test~20% left at bedtime
UrAvgConsumerFull week as main phoneMorning to bedtime on normal days; a heavy filming day hit 6% by 6 p.m.
The VergeHeavy use, two reviewersOne needed a midday top-up; the other finished with ~30% after 6.5h screen-on
Hardware everyone agrees on: 5.4″ cover + 7.6″ 120 Hz inner OLED, ~4,883 mAh dual-cell battery, A20 Pro, 254 g. It's the heaviest iPhone Apple sells — and 39 g heavier than Samsung's Fold.

The video reviews

Duo in tent mode playing video — MKBHD
MKBHD29 min

“iPhone Duo Review: First Generation Fun!”

  • Frames it exactly as the title says: genuine delight in the hardware, usual first-gen compromises in software, weight and cameras
  • Praises the hinge's variable resistance, the nano-texture screen, and multitasking — paired apps, half-open split keyboard, tent mode
  • Battery strong in his testing (30%+ left); cameras, speakers and battery are each “slightly worse” than a Pro — “that's just physics”
  • Verdict: regular people and camera-first buyers should pass; if $2,000 doesn't sting, it's a really fun phone
Watch on YouTube
Mrwhosetheboss using Pages full-screen on the Duo's inner display Size comparison: the Duo beside a regular iPhone and a rival foldable — Mrwhosetheboss
Mrwhosetheboss20 min

“iPhone Duo Review — Messier Than You Think”

  • The day's most-watched review (2.2M views) — and one of the most skeptical. The weight is a daily tax: about 20% heavier than an 18 Pro, and heavy enough to slowly pivot on MagSafe stands and chargers while open
  • His math: the hassle it saves (occasional split-screen, juggling Safari tabs) may be canceled out by the hassle it adds every single time you pick it up
  • Two big asterisks: price — not just Pro Max money, $700 more — and durability: titanium and IP68 help, but it simply has more ways to break and wear than any slab phone
  • Verdict: if you've used foldables before and know what you're in for, go for it — “it does some extremely cool things.” If you're new to foldables, he'd strongly steer you to a Pro or Pro Max instead
Watch on YouTube
Unoptimized app floating on the Duo's inner display with black bars — The Verge The Duo's small cover screen in hand — The Verge
The Verge26 min

“One of Apple's messiest first-generation products in a long time.”

  • The skeptic's review: expensive, full of compromises, “incredibly frustrating to use” at times — reaching for a 17 Pro Max felt like relief
  • Core problem is inverted vs. Android folds: their inner screens aren't useful; the Duo's outer screen isn't — so you open it constantly, and the apps aren't ready
  • Gets hot in third-party apps and long camera sessions; battery split between its two reviewers
  • Still fun — compares it to the first MacBook Air. “Most people should wait” at least another year of refinement
Watch on YouTube
Dave2D holding the closed Duo, showing its side profile Dave Lee presenting the Duo in his studio
Dave2D16 min

“iPhone Duo Review — Apple Knows Best”

  • Of all the foldables he's used, this is the best one “in terms of the actual experience of what the average person would want out of a phone”
  • Even the lazy fallback for unoptimized apps — resizing a regular app to fill the screen — works as a worst case; the purpose-built apps look really nice on it
  • The most subjective phone he's covered: whether a bigger screen matters is entirely about how you use your phone, so try one for a week before judging — any video that tells you otherwise is “blowing smoke”
  • About $100 more than the Galaxy Z Fold 8 — and pre-orders sold so fast that ship dates slipped into 2027
Watch on YouTube
Joanna Stern testing the Duo on the Hudson Duo inner display close-up — Stern
Joanna Stern — New Things17 min

“Putting Apple's Folding Phone Through Hell”

  • Built a robot (“Hingey”) to fold the Duo 30,000+ times for a hinge durability verdict — result: 32,000+ folds at ~17 a minute over four nights, no noticeable deterioration; the hinge came out slightly stiffer
  • Took it on the Hudson for a camera and bright-sunlight matte-display test against the Galaxy Z Fold
  • Loved FaceTime on the big screen; writes a “love letter to Face ID” — Touch ID is her sticking point
  • Software bugs were part of the week — her WSJ cut (5 min) adds: the $800 premium over the Pro isn't worth it except for early adopters, and she missed the Action Button daily
Watch on YouTube
MrMobile using the half-folded Duo as its own tripod for a selfie Macro of the Duo's hinge, frame and Dynamic Island — MrMobile
MrMobile20 min

“iPhone Duo Review: Double-Edged Sword”

  • Michael Fisher, a longtime foldable user, calls the inner screen “a masterpiece” — an iPad-mini-like aspect ratio, and after years of reflective foldables the paper-like nano-texture is “a revelation” that also camouflages the crease beautifully
  • The hinge hangs at almost any angle — flex-cam selfies included. One gripe: you get Camera Control but no Action Button — “not the decision I would have made”
  • The quiet advantage is repair: demand may be higher, but Apple's retail footprint and customer service make the Duo an easier recommend than rival foldables
  • Verdict: “You'll be spending a lot, but you'll also be getting a lot — an iPhone and an iPad in one that fits in your pocket and does things no other phone can do”
Watch on YouTube
Duo Preview selfie mode — CNET
CNET11 min

“Late to the Foldable Party, but It Steals the Show”

  • Among the most positive takes: the wait was the point — Apple's version arrives more considered than the category it joins
  • Shows off Duo Preview: rear cameras for selfies with the cover screen as viewfinder (above, Golden Gate)
  • Abrar Al-Heeti: it “took its time getting here, but it's made quite an entrance”
Watch on YouTube
Tom's Guide comparing the Duo with a rival foldable
Tom's Guide11 min

“My favorite foldable yet — but there's a catch”

  • Mark Spoonauer got real work done on it: video, Slack, spreadsheets on the big screen
  • Hardware feels polished; the catch is software — two apps side-by-side is the ceiling, and unoptimized apps mean “a very expensive pair of black bars”
  • Advice before spending $2,000: check that the apps you rely on actually use the display
Watch on YouTube
The Tech Chap comparing video playback on a regular iPhone versus the open Duo
The Tech Chap17 min

“The iPhone Duo is Brilliant… and Frustrating”

  • One week in, every time he goes back to his 18 Pro or Pro Max he thinks “oh, that's better”: muscle memory, Face ID on everything, and apps that are all full-screen
  • Genuinely likes: a StandBy mode that doesn't need power, the outer screen doubling as a camera viewfinder, and the sheer novelty of a folding iPhone — though novelty wore off on every previous foldable he's used
  • Cameras are the sticking point: hard to spend $2,000 on a phone with a worse camera than the significantly cheaper 18 Pro and Pro Max, when cameras matter to him
  • Verdict: “Is it the iPhone I would recommend? For now, no. But let's come back in a few months”
Watch on YouTube
UrAvgConsumer testing the Duo in flex mode in his kitchen
UrAvgConsumer20 min

“I Lived With the iPhone Duo — Here's What Happened”

  • A full week as his main phone, and the convert of the group: “I am officially a fan of the Duo. This thing is awesome” — it's becoming his daily driver
  • Battery passed the daily test: early morning to bedtime without reaching for the charger until late at night. A heavy filming day still drained it to 6% by 6 p.m.
  • His two-phone solution: the Duo for everyday life, his 18 Pro kept as the dedicated content-capture camera for trips and family moments
  • Unlike the iPhone Air — different shape, same experience — “this is on another level” for anyone looking for a genuinely new iPhone experience
Watch on YouTube
iJustine using the Duo half-open at an outdoor restaurant table
iJustine10 min

“iPhone Duo Review — A Week With the Folding iPhone!”

  • The portability convert: the “teeny tiny” cover screen handles texts and Pokémon Go, then it unfolds when there's real work — editing included
  • Favorite small touch: hold the emoji/globe key to slide the cover-screen keyboard left or right for one-handed typing — as a left-hander, she uses it constantly
  • Half-open typing on a table only really works with a case on; caseless, it's wobbly
  • Battery honestly caveated — a filming week isn't normal use — but she never once panicked for a charger
Watch on YouTube
Tyler Stalman analyzing the Duo's selfie-camera preview crop
Tyler Stalman14 min

“iPhone Duo: A Photographer's Review”

  • The camera specialist's take: the lens he'll miss most from his 18 Pro is the 4x telephoto. The Duo's 2x digital zoom is “totally fine” — but it's not real reach, and the main lens is a 26mm equivalent (like the Air) against the Pro's 24mm and bigger sensor
  • The surprise: having the screen and cameras on the same side wasn't the creator story he expected. “This is mostly a creator device, but it is an amazing computing device” — if your creation is time spent looking at a big screen, this is the solution
  • Durability worries faded the longer he used it — folding “does not seem to be a problem,” and the titanium exterior feels more premium than the Pros' aluminum
  • Verdict: heavy iPad users may be able to replace two devices with this one
Watch on YouTube
PCMag size comparison — Duo cover screen vs regular iPhones
PCMag — Lab Report11 min

“The best foldable for iPhone lovers”

  • Eric Zeman: performs like an 18 Pro, lasts almost as long, takes great everyday photos
  • Only iPhone with Apple Pencil support — notes and sketches are a Duo exclusive
  • Flags the adjustment curve: new button layout, no Face ID, “DuoOS” interface to relearn; price runs $2,000–$3,200
Watch on YouTube
HTX Studio's presenter holding the open Duo
HTX Studio26 min

“iPhone Duo Review: Folding Has a Price”

  • The analytical outlier: only about 1 in 50 phones sold is a foldable because the core idea is conflicted — the Duo still sits between a phone and a tablet without a clear identity, and its arrival doesn't mean foldables' problems are finally solved
  • His provocation: “Perhaps the point of folding isn't to make the phones better. Perhaps the point of folding is to make them more expensive”
  • And yet demand is real — shipping slipped to late January within half an hour of pre-orders. We spend 7–8 hours a day on these screens, people pay up for that, and “it folds” is a much easier sell than niche Pro camera features
Watch on YouTube
Nikias Molina holding the open Duo showing its full app grid
Nikias Molina24 min

“I Tested Every iPhone Duo Feature & They Are INSANE”

  • Not a verdict review — an exhaustive feature test, and the most useful if yours is on the way. App Exposé pairs can be locked together with a double-tap so a split-screen pair reopens as a unit
  • StandBy mode works without charging on the Duo (it needed a cable on other iPhones) — and Apple Watch unlock quietly covers for the missing Face ID
  • Smart Take: prop the phone up and the camera fires automatically when you change poses
  • His sunlight test adds a nuance to the matte-screen story: in direct sun the nano-texture takes on a whitish coating and looks less clear than a glossy rival — step into shade and “it looks incredible”
Watch on YouTube

In motion

MKBHD unfolding the Duo into laptop mode

The unfold — MKBHD swings it from closed to half-open “laptop” mode.

Hingey the robot folding the Duo on Stern's test bench

Hingey at work — Stern's robot cycling the hinge toward 30,000 folds.

Macro shot of the Duo's polished frame — MKBHD

The hardware macro — the polished titanium frame, from MKBHD's intro.

Also in print