Hands-on with the iPhone Duo: the folding mechanism is smooth, the crease is almost impossible to find with a finger, and the inner screen has a matte finish (The Verge)

Apple unveiled the iPhone Duo, a foldable phone with a 5.4-inch outer display and a 7.6-inch inner display powered by the A20 Pro chip and a new display engine. The folding mechanism operates smoothly, and the crease is nearly invisible to the touch, while the inner screen features a matte finish. The device also incorporates Touch ID for authentication.