After years of rumors, patents and other companies' foldables, Apple announced its first folding iPhone this week: iPhone Duo [1]. (I wrote separately about the new modem, because I'm that person. This one is about whether you should buy the thing.)
What it is
Open, iPhone Duo has a 7.6-inch inner display. Closed, it's about the size of a passport with a 5.4-inch outer screen [1]. It runs the A20 Pro, has a 48MP Fusion Main camera that doubles as an optical-quality 2x telephoto, and a 48MP Fusion Ultra Wide, the same one as the iPhone 18 Pro [1]. It's made of grade 5 titanium, in star white or night sky [1].
Apple's CEO John Ternus called it "the most transformational change to iPhone since the original" [1]. Apple has never once undersold a product, so calibrate accordingly.
The price
U.S. pricing starts at $1,999 for 256GB, with 512GB at $2,199, 1TB at $2,599 and 2TB at $3,199 [2]. Pre-orders open October 16, availability October 23 [1][2]. That's MacBook Pro money for a phone. A very nice phone. Still a phone.
Should you buy it?
- You read, edit or multitask on your phone constantly: this is the first iPhone that's genuinely a small tablet when you need it. Strong maybe.
- You mostly scroll, text and take photos: an iPhone 18 Pro does all of that, costs less, and has no hinge to worry about.
- You've been waiting for Apple to "get foldables right": wait for real-world reviews on crease visibility, durability and battery life. Version one of anything, even from Apple, is version one.
- You already carry an iPad mini everywhere: this might replace two devices. That changes the math.
What everyone is missing
Apps. Hardware is half the story on a foldable; the other half is whether apps use the big screen well. Apple controls the platform, and that's its real advantage over other foldable makers. If developers adapt quickly, iPhone Duo gets better after you buy it. If they don't, it's a big phone that folds.
Also: repair costs. Folding screens are expensive to fix. Budget for AppleCare or a very careful lifestyle.
The small details I liked
Touch ID is back, built into the side button, so unlocking works the same open or closed [1]. Apple also says the inner screen has a nano-texture finish that reduces glare and crease visibility [1], and it supports Apple Pencil later this year [1]. Battery is rated up to 24 hours when you use both screens equally [1]. Those are the details that decide whether you love a phone or tolerate it.
Bottom line
Apple's first foldable looks premium, priced like it, and aimed at people who'd use the big screen every day. If that's you, pre-order and enjoy. If you're buying it to be first, remember the second one is usually the one Apple would have shipped if it could.