Apple
John Ternus and iPhone Duo
iPhone Duo is Apple's first foldable iPhone. John Ternus unveiled it on September 9, 2026, in his first fall product event as CEO. Apple called it the most transformational change to iPhone since the original.
Short answer. iPhone Duo is Apple's first foldable iPhone. John Ternus introduced it on September 9, 2026. Apple: 7.6-inch inner display, 5.4-inch outer display, A20 Pro, from $1,999, pre-order October 16, in stores October 23.
Why this product is on a Ternus site
Ternus is a hardware-engineer CEO. His first keynote product was a new iPhone form factor. Apple put his name on the newsroom quote. That is the reason this URL exists — not because this site sells phones.
He did not "invent Duo alone." Apple's hardware, software, and design organizations shipped it. The CEO credit here is announcer and hardware-career context, the same rule used on the iPhone and AirPods pages.
What Apple said (confirmed)
From Apple unveils iPhone Duo, September 9, 2026:
- First foldable iPhone
- Opened: thinnest iPhone, 7.6-inch inner display
- Closed: 5.4-inch outer display
- A20 Pro chip; dual-battery architecture in Apple's description
- Colors: star white and night sky; grade 5 titanium
- Pre-orders October 16; availability October 23
Ternus, quoted by Apple: Duo is "the most transformational change to iPhone since the original."
Price and comparisons (reported)
Reported Reuters and TechCrunch put U.S. starting price at **$1,999** for 256GB. Reuters compared that with Samsung and Google foldables in the same news cycle. Those comparisons are journalism. Apple's newsroom is the place for list price in your country.Apple Pencil and other details
Reported Reuters wrote that Duo **supports Apple Pencil** and uses **Touch ID** in the side button. GSC already shows stray queries for "John Ternus Apple Pencil." The documented link is: Duo is a large-display iPhone that, in event coverage, takes Pencil input — not that Ternus designed the stylus.If Apple's product page differs after launch, the product page wins.
How to read this page after launch
This article is a September 2026 announcement record. It is not a review, a repair guide, or a rumor roundup. Sales, returns, and hinge durability will be other people's stories later.
For the event as a CEO milestone, see first Apple event as CEO. For earlier iPhone hardware credit, see iPhone hardware.
Frequently asked questions
What is iPhone Duo?
Apple's first foldable iPhone, announced September 9, 2026. Opened it has a 7.6-inch inner display; closed, a 5.4-inch outer display. Apple said it starts at $1,999.
Did John Ternus introduce iPhone Duo?
Yes. It was the headline product of his first fall Apple event as CEO, eight days after he took office.
When can you buy iPhone Duo?
Apple said pre-orders begin October 16, 2026, with availability October 23, 2026.
Does iPhone Duo support Apple Pencil?
Reuters reported that Duo supports Apple Pencil and uses Touch ID in the side button. Specs should be checked on Apple's product page as they ship.
Related reading
Sources
- Apple unveils iPhone Duo (Apple Newsroom)
- Five takeaways from Apple’s biggest product showcase of the year (Reuters)
- Everything Apple announced at its fall iPhone event, from the foldable iPhone Duo to an always-listening Apple Watch (TechCrunch)
- Apple’s new CEO John Ternus reveals the foldable iPhone Duo (CNN Business)
Last updated 2026-09-11. Dates change only when the page is actually revised.