The MacBook Air is a slim, lightweight laptop that's available with a 13in screen. You'll get the choice between 128GB or 256GB of flash storage from Apple, but those are the only two configurations the company offers.
There was once an 11in model of the MacBook Air, but that has been discontinued and is no longer available from Apple. It might still be available second-hand from sites like eBay and CEX, though.
Each of the MacBook Air models has a 1.8GHz processor with 8GB RAM, turbo boosted to 2.9GHz. That's not powerful enough for most gamers or video editors, but for students, commuters and casual users, this is a good option, and the cheapest too.
The 128GB model of the MacBook Air costs £949, while the 256GB model costs £1,099.
There is a more portable MacBook available, which is simply called the MacBook (we talk more about it in a moment). However, we'd still recommend the 13in MacBook Air to anyone wanting to travel often with their laptop.
The design of the MacBook Air hasn't changed in years, while the MacBook is gorgeous and is available in several colours. It also offers a Retina screen while the Air does not. But it remains a strong and (by Apple's standards) just-about-affordable option. It certainly offers far more bang for your buck than the costly and arguably underpowered MacBook.
You can view more details about Macbook Air on Apple site: https://www.apple.com/uk/shop/buy-mac/macbook-air