What you give up
- Battery life at its absolute maximum. A used battery has cycles on it, even a healthy one.
- Cosmetic perfection, unless you pay for the top grade.
- The longest warranty. Refurbished cover is usually months where new is years.
- The newest features, because last generation is where the savings are.
- Colour and configuration choice: you buy what exists, not what you specify.
What you keep
- The same performance. A processor does not slow down with age; thermal paste and dust are maintenance items, not decay.
- The same software support window, which is tied to the model, not to who owned it.
- The same repairability and the same parts availability.
- Consumer protections, if you buy from a seller who offers returns rather than a stranger with a parcel.
Where the savings actually come from
Most of a device's depreciation happens in its first year or two, and almost none of that is about capability. A two-year-old flagship phone still runs everything in the app store; it simply is not the current model any more.
That gap between “not current” and “not capable” is the whole argument for buying refurbished.
When new is the better call
If you need a specific configuration, the longest possible support window, or a device that will be repaired under warranty without argument for several years, buy new.
If you need a good machine for less and can live with a scratch, refurbished wins on almost every metric that affects daily use.