The foldable phone market may be shrinking, but one type of foldable is moving sharply in the opposite direction.
Global foldable smartphone panel shipments fell 13% year over year in the first half of 2026, according to Counterpoint Research. Beneath that decline, however, book-style in-fold panels surged 35% while clamshell shipments plunged 62%, pushing book-style displays to nearly 80% of the market.
That divide could become even more pronounced in the second half of the year as Samsung increases production and Apple’s arrival gives suppliers another major customer betting on the book-style format.
“The quarter-to-quarter pattern was more indicative than the headline H1 decline,” said Counterpoint Senior Analyst Enze Qi, who noted the increase came largely from Samsung’s own procurement push and that “the recovery was not yet broad-based.”
Book-style foldables are taking over
The industry’s pivot away from clamshells and toward book-style devices has been building for a while, and H1 2026 made it official. In-fold panels now account for nearly 80% of all foldable shipments, up from about half a year earlier.
Counterpoint expects that share to reach 81% by the end of 2026 and continue climbing through 2030. Over the same period, the research firm projects the overall foldable panel market will grow 74% from 2026 levels.
The implication is that future foldable growth may increasingly depend on larger book-style devices rather than the flip-phone form factor that helped popularize the category.
Enter the iPhone Duo
Apple’s long-rumored foldable, the iPhone Duo, has arrived with a 7.6-inch inner screen and a 5.4-inch cover display.
TrendForce expects Apple to ship roughly 5 million units in 2026, good for a 24.8% share and second place behind Samsung’s projected 35.1%.
Apple built the Duo around a 10-layer inner display stack with a nano-textured surface to hide the crease, wrapped in a titanium frame that weighs about 254 grams. To keep things thin, Apple skipped a telephoto camera and swapped Face ID for a side-mounted Touch ID sensor — trade-offs TrendForce frames as typical of the balancing act every foldable maker faces between thickness, cameras, biometrics and battery.
Even so, TrendForce projects the broader Android foldable field, excluding Apple, will drop more than 20% this year as rising component costs squeeze shipments industrywide.
A foldable market moving at two speeds
What’s emerging isn’t one foldable market recovering; it’s two markets moving at different speeds. Samsung and Huawei are grinding through a cost-driven slowdown even as they hold onto volume leadership, while Apple’s arrival is creating a separate growth lane built on premium pricing and design polish rather than raw unit gains.
Book-style devices are gaining share as clamshell shipments retreat, and Apple’s entry adds another major premium brand to the format already favored by Samsung and Huawei. At the same time, higher component costs are putting pressure on shipment growth across the broader Android market.
That leaves the industry with an unusual outlook: foldables could become more technically ambitious even before they become more affordable. If Apple’s entry drives suppliers to invest further in thinner displays, stronger hinges and less visible creases, buyers may see better hardware first — while waiting longer for prices to come down.
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