A18 is ahead of M1 single core, slightly behind in multi core on Geekbench

https://browser.geekbench.com/v6/cpu/compare/16858435?baseli...

you’re essentially getting an m1 macbook air with a worse keyboard

a quality used m1 air on ebay is about $400 w 256gb storage https://www.ebay.com/sch/i.html?_nkw=m1+macbook+air&_trksid=...