According to sources, the launch of the standard version of the iPhone 18 might be postponed to no earlier than March of the following year, which would synchronize its release with that of the iPhone 18e. This particular model could experience a deterioration in craftsmanship, and there's a possibility that its components could be interchangeable with those of the iPhone 18e. Presently, Apple has commenced the development of two distinct product lines: the standard iPhone 18 and the iPhone Air 2. Both of these models are anticipated to make their debut alongside the iPhone 18e in the spring of 2027. Furthermore, Apple has recently introduced its inaugural foldable smartphone, the iPhone Duo, in addition to the iPhone 18 Pro and iPhone 18 Pro Max. The iPhone Duo boasts a 7.6-inch inner display and a 5.4-inch outer display, with the FaceTime camera ingeniously concealed beneath the inner screen. Its mid-frame is constructed from aerospace-grade titanium alloy, providing up to 31 hours of video playback on the inner screen and 44 hours on the outer screen. Moreover, it supports a 50% charge in a mere 20 minutes with fast charging.