Dexcom G6 to G7: What to Do With Your Leftover Sensors

Switching CGM systems is one of the most common reasons people end up with sealed, unused sensor boxes. Dexcom G6 to G7 is a particularly common jump right now — the G7 is smaller, has a shorter warm-up time, and doesn't need a separate transmitter, so a lot of people move to it as soon as their prescription allows. What's left behind is often a few unopened boxes of G6 sensors that still have months of shelf life.

Why this happens more than you'd expect

Mail-order pharmacy refills are usually scheduled automatically, sometimes months in advance. If your doctor switches your prescription to G7 partway through a refill cycle, the G6 order already in transit still arrives — sealed boxes with no use for them.

What you can do with unopened G6 boxes

• Ask your endocrinologist's office if they know a patient who could use them — some clinics keep an informal list.
• Donate through a diabetes nonprofit that redistributes supplies to people without insurance coverage.
• Sell to a buyback company that currently has demand for G6 stock. Demand shifts month to month as the industry moves toward G7, so it's worth checking current pricing before assuming a box is worthless.

Right now, our own buyers have stronger demand for G7 sensors specifically, so we're focused on buying those first — but if you have G6 boxes on hand, it's worth checking back, since our accepted list changes as buyer demand shifts. For G7 sensors, Freestyle Libre, or Accu-Chek supplies, get a free quote here — same-day pickup is available in Manhattan, Brooklyn, Queens, and the Bronx.