Apple iPhone Duo review: A first-class foldable - Engadget

Engadget’s review of Apple’s first foldable, the iPhone Duo, highlights strong display quality and a smoother transition between screens—but also points to trade-offs. Externally, the phone uses a glossy 5.4-inch OLED with 1,878 x 2,670 resolution, 120Hz ProMotion and up to 3,000 nits peak brightness. The inner panel is a larger 7.6-inch 1,398 x 2,034 OLED with a 1:1.4 aspect ratio and matching high luminance. The interior uses a matte nanotexture finish to reduce reflections and conceal a crease, though there’s a small divot visible at certain angles. The review notes the phone is significantly heavier than key competitors, and Apple Pencil support arrives later this month.