iPhone Duo review: Apple's first foldable, from 79,900 baht — is the price gap worth it?

Apple has launched iPhone Duo, the company's first foldable smartphone, with two displays: a 5.4-inch outer display (90% screen-to-body ratio) and a 7.6-inch inner display about 50% larger than the iPhone 18 Pro Max. The body is Grade 5 titanium, the inner display has a nano-texture coating, and the hinge is made of over 100 parts, rated IP68 for water resistance (6 meters for 30 minutes). It uses the A20 Pro chip and a dual-battery system, unlocks via Touch ID on the side button instead of Face ID, and is eSIM-only with no physical SIM slot.

The camera system is a dual 48MP setup with a main Fusion camera (2x zoom) and an ultrawide, but lacks a separate telephoto lens and the variable aperture found on iPhone 18 Pro, adding dual-screen-specific features like Duo Preview and Dual Capture. FaceTime supports 4K 120fps video. On the software side, iOS 27 has been redesigned for the foldable form, supporting Split View — the first split-screen feature on iPhone — along with Apple Intelligence and a new Siri that supports English only at launch. Battery life reaches up to 24 hours of mixed use, with 50W wired charging (50% in 20 minutes) and MagSafe/Qi2 wireless charging.

Thai pricing starts at 79,900 baht (256GB), rising to 127,900 baht (2TB). Pre-orders opened October 16, with sales starting October 23, in two colors: Star White and Night Sky. Compared with the iPhone 18 Pro starting at 48,900 baht and the iPhone 18 Pro Max at 52,900 baht, iPhone Duo costs about 27,000–31,000 baht more. Reviewers see it as suited to early adopters, frequent travelers, and those wanting the largest possible display, while those prioritizing camera quality, Face ID, or Thai-language Apple Intelligence (not yet supported) may want to skip this first generation.

Source: Apple