The most recent version from 2017 received a bump to dual-core, seventh-generation Kaby Lake Intel processors. That means you can’t plug in a wired mouse and power at the same time, for example, unless you have an adapter. Aside from a headphone jack, the laptop comes with just a single Thunderbolt 3 USB-C port. It hasn’t been updated since 2017, but it has the modern Mac look, including the large trackpad, butterfly-style keyboard, Retina display, and simplified port selection. Compared to the Air, not only is the MacBook’s screen smaller, but the device is also extremely thin and light. There are plenty of reasons to opt for it, too.
In July 2019, Apple stopped selling the 12-inch MacBook on its website and in its stores, but you can still get it from third-party resellers.