The Dexcom receiver carries a one-year warranty from the date of shipment or delivery. That’s the official window Dexcom guarantees the device is free from defects in materials and workmanship. In practice, many receivers continue working well beyond that year, but once the warranty expires, you’re on your own if something goes wrong.
What the Warranty Actually Covers
Dexcom’s limited warranty applies for one year starting from the date you receive the device, not the date you first turn it on. During that window, Dexcom will replace a receiver that has a manufacturing defect or hardware failure under normal use. The warranty does not cover damage from drops, water exposure beyond the device’s rating, or any modifications you’ve made to the hardware.
If Dexcom sends you a replacement receiver while your original is still under warranty, the replacement doesn’t get a fresh one-year clock. It inherits whatever time remains on the original warranty. So if your receiver fails at month eight and you get a replacement, that replacement is only covered for the remaining four months.
How Long Receivers Typically Last
The one-year warranty is a guarantee, not an expiration date. Dexcom receivers don’t stop functioning the day the warranty ends. Many users report getting two or even three years out of a single receiver before the battery degrades noticeably or the device develops issues. The rechargeable battery inside is the most common limiting factor. Over time, it holds less charge per cycle, and eventually the receiver may not last through a full day without needing to be plugged in.
Other signs a receiver is reaching the end of its useful life include a touchscreen that becomes less responsive, slower performance when scrolling through data, and occasional connectivity drops with the sensor. None of these happen on a predictable schedule. How you store and charge the device matters. Keeping it in extreme heat (like a car dashboard in summer) accelerates battery wear.
Do You Even Need the Receiver?
With both the Dexcom G6 and G7 systems, the receiver is optional. Your smartphone can serve as the display device using the Dexcom app, and for G7, an Apple Watch can also display readings directly. Many users skip the receiver entirely and rely on their phone.
That said, the receiver still has a role for people who prefer not to depend on a phone, who want a dedicated backup device, or whose phone isn’t compatible with the Dexcom app. It’s also useful for children whose parents don’t want them carrying a smartphone. If your receiver is aging and you’re already comfortable using the app on your phone, replacing it may not be necessary at all.
Getting a Replacement
If your receiver fails within the one-year warranty period, contact Dexcom directly to request a replacement at no cost. You’ll typically need to describe the issue and may be asked to troubleshoot basic steps before they approve a swap. Have your original purchase or shipment date available, since that’s what determines warranty eligibility.
Outside the warranty window, you can purchase a new receiver through Dexcom or through your insurance provider, depending on your plan. Some insurance plans cover a replacement receiver once per year. If you’re transitioning from G6 to G7, note that the two systems use different receivers, so your old G6 receiver won’t work with G7 sensors. Check with your supplier about what’s covered before ordering.