Apple iPhone Duo
Apple's first foldable phone with book-style design and 8-inch inner display.
- Display
- 8" OLED
- Chipset
- Apple A20 Pro
- Battery
- 5,000 mAh
- Camera
- 48 MP
Compare the best book-style foldable phones in 2026 — Apple's first foldable, Samsung's refined flagship, and Motorola's value contender.
Apple's first foldable phone with book-style design and 8-inch inner display.
Samsung's thinnest book-style foldable with 7.6-inch inner display and Snapdragon 8 Elite Gen 5.
Motorola's book-style foldable with 8.09-inch display, 6000mAh battery, and triple 50MP cameras.
The Galaxy Z Fold 8 is the most refined foldable with 7 years of updates. The Razr Fold offers better battery and cameras at the same price. The iPhone Duo brings Apple's ecosystem to foldables for the first time. Your choice depends on ecosystem preference and priorities.
The iPhone Duo integrates with Apple's ecosystem. The Galaxy Z Fold 8 and Razr Fold work with Google and Samsung services.
The Razr Fold has 25% more battery than the Galaxy Z Fold 8, providing significantly longer battery life.
Samsung has 8 generations of foldable refinement. The iPhone Duo is Apple's first foldable.
Samsung offers the longest official update commitment at 7 years.
The Razr Fold has the most versatile camera system with a dedicated telephoto lens.
All three are excellent foldables with different strengths. The Galaxy Z Fold 8 is the safest choice with proven technology. The Razr Fold offers better hardware value. The iPhone Duo is for Apple loyalists who have been waiting for a foldable iPhone.
→ Apple iPhone Duo
Only foldable that integrates with Apple's ecosystem
→ Samsung Galaxy Z Fold 8
8 generations of refinement with 7 years of updates
→ Motorola Razr Fold
Better battery and cameras at the same price
→ Samsung Galaxy Z Fold 8
Official 7-year update commitment
→ Motorola Razr Fold
6,000mAh battery — largest in this comparison
The Samsung Galaxy Z Fold 8 is the most refined foldable with 7 years of updates and 8 generations of refinement. The Motorola Razr Fold offers better hardware value with larger battery and better cameras. The iPhone Duo is the best choice for Apple ecosystem users.
Foldable phones are worth it if you value the larger inner display for multitasking, reading, and productivity. They are less compelling if you primarily use your phone for social media, messaging, and quick tasks. The form factor has matured significantly but still comes at a premium price.
The Motorola Razr Fold has the largest 6,000mAh battery, providing the best battery life in this comparison. The Galaxy Z Fold 8 has a 4,800mAh battery, while the iPhone Duo is estimated at 5,000mAh.
The iPhone Duo is worth buying if you're invested in Apple's ecosystem and have been waiting for a foldable iPhone. As a first-generation product, it may have issues that are resolved in later versions. If you want proven technology, the Galaxy Z Fold 8 is the safer choice.
Book-style foldables in 2026 cost between $1,899 (Galaxy Z Fold 8) and $1,999 (iPhone Duo). The Motorola Razr Fold also costs $1,899. These are premium devices with premium pricing.
Specifications are sourced from manufacturers' official product pages and cross-referenced with independent sources. We document where specifications come from and acknowledge limitations.
Last updated: 2026-09-23. Prices and availability may vary by region. If you find an error, please report it here.
Compare Apple iPhone Duo and Samsung Galaxy Z Fold 8 — the two leading book-style foldable phones. Display, camera, battery, and software compared.
Compare Samsung Galaxy Z Fold 8 and Motorola Razr Fold — two Android book-style foldables. Display, battery, camera, and software compared.
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