https://www.theguardian.com/technology/2020/dec/09/apple-macbook-air-m1-review-gamechanging-speed-and-battery-life

Giant leap in performance and twice the battery life in a winning form with no real downsides

The MacBook Air is the first of two new laptops with Apple’s first-of-its-kind, own-brand M1 processor, which makes for a giant leap in performance and battery life.