This post makes an unfounded statement that fair phone is more env friendly because it is repairable. This might be true, and the opposite may be true: maybe fairphone is less env friendly because it breaks more often and requires a lot of spare parts. Maybe they produce more toxic waste during production of fairphone.
But we should take into account there’s a market for used iPhones. When I last upgraded, I gave my old phone to someone who needed it and prevented them from buying another brand. If (theoretically) iPhones are better for the environment than competitors, that’s a net win.