Refurbished Grade C is the lowest quality of a refurbished phone or laptop that is still in working order. Although refurbished Grade C devices have been tested and are confirmed to work, they do show the signs of heavy or even excessive usage by their previous owner.
You will see very noticeable cosmetic issues with a refurbished Grade C device including more significant scratches and signs of wear and tear on the case or lid. Though, Grade C devices are cheaper still than Grade B and Grade A devices, making them ideal for those who need a new phone or laptop but have very little money to spare.
Refurbished Grade A:The best quality of refurbished device. Near-mint condition, excellent cosmetic level, and little signs of previous use.
Refurbished Grade B:The second-best quality of refurbished device. Light scuffing on the bezel and light scratches on the case or body as a result of gentle use.
Refurbished Grade C: The lowest-quality of refurbished device. 100% in working order but will have more scratches and signs of wear and tear as a result of heavy, daily use.