Apple’s iPhone Duo Could Finally Push Foldable Phones Into the Mainstream

Apple has finally entered the foldable phone market.

The company unveiled the iPhone Duo on September 9, bringing a 7.6-inch folding display, a 5.4-inch outer screen and a starting price of $1,999 to a category Samsung and Chinese manufacturers have been developing for years.

The question is no longer whether Apple will make a foldable iPhone.

It is whether Apple can do something its rivals have not yet managed: turn foldable phones from an expensive technology niche into a genuinely mainstream smartphone category.

Analysts increasingly think Apple’s arrival could materially accelerate the market.

But at nearly $2,000 before upgrades, the iPhone Duo also shows exactly why foldables still have a long way to go.

Apple arrives seven years after Samsung

Samsung has been selling foldable smartphones since 2019.

Huawei, Honor, Motorola and other manufacturers have also spent years improving flexible displays, hinges and software designed around folding screens.

Apple waited.

The company has not publicly given a simple explanation for that delay, but industry reporting points to a combination of technical maturity, durability, component costs and the relatively small size of the foldable market.

That patience may have allowed Apple to enter after many of the category’s earliest problems had already been identified by competitors.

The iPhone Duo uses Apple’s A20 Pro processor and a 48-megapixel Dual Fusion camera system. When unfolded, its 7.6-inch OLED display becomes the largest screen Apple has ever shipped on an iPhone.

Apple has also redesigned parts of iOS around the new form factor, allowing apps to operate side by side and adapt as the device moves between folded and unfolded states.

Pre-orders are scheduled to begin October 16.

The $1,999 problem

Apple’s biggest challenge is obvious.

The base iPhone Duo with 256GB of storage costs $1,999.

The 512GB version costs $2,199, while the 1TB model rises to $2,599. A 2TB configuration reaches $3,199.

That makes even the entry-level Duo more expensive than many laptops, tablets and premium smartphones combined.

It also puts Apple above Samsung’s current flagship foldable.

The Galaxy Z Fold 8 has been selling for roughly $1,650 in the United States for its 256GB configuration, based on current retail pricing cited in the research.

Samsung has wasted little time pointing out that Apple is late to the market.

Following the Duo launch, Samsung Mobile US mocked its rival with the line: “Let us know when you’re done reheating our leftovers.”

The joke lands because Samsung has spent years building the category Apple has only now entered.

But Apple’s arrival may ultimately benefit Samsung too.

Analysts expect the foldable market to accelerate

Despite years of development, foldable phones still represent a small portion of global smartphone sales.

That could now change.

Counterpoint Research expects the global foldable smartphone market to grow about 21 percent in 2026.

Its most recent forecast projects Apple could capture roughly 25 percent of the foldable market by the end of 2026 and as much as 40 percent in 2027.

IDC has also forecast significant growth, although its estimates have changed considerably over time.

A more recent IDC projection cited in the research expects foldable shipments to rise 12.6 percent this year to approximately 22.9 million units.

The precise forecasts differ, but the broader conclusion is similar: analysts expect Apple’s entrance to expand interest in foldable devices.

That does not necessarily mean Apple will dominate the category immediately.

Counterpoint has also pointed to Samsung and Huawei as major drivers of foldable growth, particularly for larger book-style devices.

The market was already evolving before Apple arrived.

Why Apple matters anyway

Apple has a long history of entering technology categories after competitors and then expanding their appeal.

Reuters has drawn a direct comparison with touchscreen smartphones.

Touchscreen technology existed before the first iPhone, but Apple’s 2007 launch helped transform touchscreens into the dominant smartphone interface.

Foldables present a similar opportunity, although there is no guarantee the outcome will be the same.

The difference Apple brings is its ecosystem.

Millions of iPhone users already use Apple’s hardware, operating system, apps, services and accessories.

For some buyers who were unwilling to switch to Samsung or another Android manufacturer just to get a foldable phone, the Duo now offers a way to try the format without leaving the Apple ecosystem.

That could expose foldables to a much larger pool of potential buyers.

Developers are part of the strategy

Apple is also treating the Duo as more than a hardware experiment.

The company has already released dedicated Human Interface Guidelines explaining how developers should design apps for the folding display.

Apple has also published developer Tech Talks covering how apps can adapt when the Duo opens and closes and how developers can use the larger display more effectively.

That matters because one of the long-term weaknesses of foldable phones has been software.

A larger folding screen is not especially useful if apps simply stretch their existing smartphone layouts across it.

Apple’s developer ecosystem could help change that.

If major apps begin designing specifically for foldable iPhones, the result could improve the entire category’s usefulness and put pressure on developers to take large-screen mobile interfaces more seriously.

Durability is still an open question

Apple appears confident that it has solved many of the engineering problems associated with earlier foldables.

Early hands-on reports have been positive about the screen and hinge design.

But those impressions come from demonstrations and short-term testing.

They do not yet tell buyers what the Duo will look like after a year of daily folding and unfolding.

Long-term durability, battery performance, repair costs and screen wear remain important unknowns.

Even the visibility of the display crease has produced conflicting early impressions.

Some reviewers describe Apple’s implementation positively, while others argue the crease remains noticeable.

Those questions will only be answered once the phone reaches customers and undergoes extended real-world use.

Foldables are growing, but they are not mainstream yet

The biggest reason for caution is the market itself.

Foldable phones have been available for years without replacing conventional smartphones.

Consumers have consistently faced the same trade-offs: higher prices, more complicated hardware and questions about durability in exchange for a larger display that can still fit in a pocket.

The iPhone Duo does not eliminate those compromises.

In some ways, its $1,999 starting price makes them even more visible.

So Apple’s arrival should not be treated as proof that the foldable era has already arrived.

A better interpretation is that the industry’s largest test is about to begin.

Samsung and Huawei proved foldable phones could work.

Apple now has to prove that significantly more consumers actually want one.

If the iPhone Duo sells at the scale analysts expect, foldables could finally move from a premium curiosity toward a major smartphone category.

If buyers decide that $2,000 is still too much for a phone that bends in half, Apple may instead discover what its competitors have already learned:

Making foldables possible was only the first challenge.

Making them mainstream is the harder one.