Refurbished phones also drastically lessen the impact the mobile phone industry has on the environment and electronic waste.
Chinese smartphone companies generally score very poorly in terms of ecological footprint compared to smartphone companies from other countries.
Yeah, in addition to contributing with the environment and avoiding a perfectly good device from its fate in a landfill, if you get a refurbished phone that comes from a reputable company you will end up with a much better device, too. Special attention to the "mint condition" devices that are usually just demo units for shopping malls that spend their entire life just there being displayed, no one touches them, they aren't really used, the most that happens is that their battery has degraded and needs a replacement.
When I got my iPhone Xs Max the battery was at 80% health. Gold colored, 256 GB unit, that I paid basically peanuts for when compared to a latest generation device, and it's still way better than a super low cost Android of similar price. I just took it to the Apple Store and had it serviced with a new, Apple genuine battery. Yes, it was an additional expense that must be accounted for, but in general, not a complete deal-breaker and more of perfectionism on my part. Phone was returned to me within an hour or two. I basically dropped it there, went to the nearby steakhouse for some grub, and got it back good as new.
People may hate on Apple for many reasons but customer experience is one thing I will never fault them for.