Condition words are not universal
Refurbished grades can vary by seller. Read what the grade means on that site, not what you assume it means.
Check battery and warranty wording
Battery health, accessories, warranty, returns and locked/unlocked status can decide whether the price fits.
Check support route
Know who handles problems: seller, marketplace, insurer or manufacturer. Keep evidence at purchase.
Use UK Shortlists next
Use the refurbished-phone checklist before comparing products.