: Use a tool like DriveDx to check the total data written (TBW). If the SSD is heavily worn, the entire machine is at risk since storage is soldered to the board on modern Macs.
Before handing over any money, perform these physical and functional checks:
: Play a speaker test at maximum volume to check for rattling or blown drivers. 2. Deep Dive: Battery & SSD Health
Unlike a new machine, a used Mac's most critical "consumables" have already been partially used:
Buying a used MacBook is a strategic way to get premium hardware at a significant discount, but it requires a careful inspection to avoid "bricks" or hidden repairs. By 2026, the market is dominated by models, which offer far better longevity than older Intel versions. 1. Essential Hardware Checklist