Cell Phone, upgrading is a waste, I only will get a new Cell if my current one stops working of I am forced to due to it will be disabled due to a Cell Network change. My next one will probably be a burner or hopefully the new FSF phone I heard about.
Laptops, PCs ? I am on 10 year old Laptop and that works just as good as any modern system. I do not use any Microsoft products so there is no need to upgrade. Plus, any new system will probably not work with my preferred OS for a couple of years, that means if I buy, I always buy used.