iPhone Duo fails to fill the small-phone gap

The iPhone Duo's 5.4-inch cover display led some Mini fans to hope it could be a small phone, but the reviewer says it is not. The device is thick, heavy, and wider than an iPhone 13 Mini, making one-handed use harder. Apple reportedly plans to add its Reachability feature to the Duo later this year.
The Duo’s 5.4-inch outer display led some Mini enthusiasts to wonder whether it might serve as a compact handset. The reviewer found otherwise: the device is bulky and dense, and its 84.1mm width exceeds the 13 Mini’s 64.2mm, making thumb travel harder.
Right-side controls ease some interactions, and Apple reportedly intends to bring Reachability to the Duo later this year. A larger keyboard is a benefit, but the phone remains a tradeoff: a small exterior screen attached to a heavy body, not a Mini successor.
For people who prefer compact phones, the Duo may disappoint by showing that a small display does not guarantee easy one-handed use. Its size and weight could affect daily comfort, pocketability, and accessibility for users with smaller hands. At the same time, the larger inner screen may appeal to those willing to accept bulk for media and productivity. The story could shape expectations around foldables and encourage buyers to distinguish screen size from overall phone size.