If you need a new smartphone but want to save money and be more sustainable, buying a refurbished one is the answer.
(personally i have bought a few devices, chromebooks, Android smartphones, from eBay that were refurbs - UK peeps > Argos, Currys etc have eBay stores that sell refurbished devices worth checking out if you are going down the refurb road)
https://www.theguardian.com/money/2023/oct/30/how-to-find-the-best-refurbished-phone