Dexcom G7 and G7 15 Day: Who It Is For, Price and Coverage

The facts at a glance

Each fact is from the maker’s own page, checked Dexcom G7 and G7 15 Day: 2026-10-22. “Not stated” means the maker’s page did not say. Prices and coverage change; confirm with the maker.

Who it is cleared for

G7 (10-day): people two years and older with any type of diabetes. G7 15 Day: adults 18 and older with type 1, type 2 or gestational diabetes. A CGM is cleared by the FDA for specific uses, and the maker’s label is the final word. Your clinician decides whether it fits your treatment plan.

Wear time and warm-up

Wear time: G7: 10 days plus a 12-hour grace period. G7 15 Day: 15 days plus a 12-hour grace period. Warm-up: G7: 30 minutes. G7 15 Day: 60 minutes. A warm-up is the period after you start a sensor when it does not yet show glucose readings. Start a sensor when you can wait that long, and keep a backup meter if your care team advises one.

Phone and app

Dexcom's G7 app page lists a minimum of iOS 18.6.0 or Android 13 (as read on 2026-10-22). A separate Dexcom receiver exists.

Insulin pump and AID compatibility

The maker names: Omnipod 5 (15 Day), iLet Bionic Pancreas (15 Day), t:slim X2 (15 Day). Dexcom's provider FAQ lists these for the 15 Day sensor and says Tandem Mobi compatibility is “coming soon”. Dexcom says the G7 connects to “a wide range of compatible pumps”; check dexcom.com/compatibility for the full current list. Compatibility depends on the pump model and software, so check the pump maker’s page too.

Price

Dexcom publishes no cash price. Its coupon says “Save $210+ on every 30-day supply of sensors” for people without CGM coverage or with a high copay, and requires a prescription. Dexcom's G7 page says most covered patients pay $20 or less per month.

Our supply cost calculator lets you enter your own insurance numbers and compare cash with insured cost.

Medicare

Medicare coverage follows the CMS rules on the Medicare page (insulin-treated or problematic low blood sugar, prescription, visit within six months). We found no Dexcom statement that changes this.

Medicare’s own rules are on Does Medicare cover a CGM?

More from the maker

• Dexcom's own footnote says 73.9% of G7 15 Day sensors lasted the full 15 days in a study, so about a quarter may not when used as labeled.
• Dexcom says the 15 Day sensor can be worn during pregnancy for all types of diabetes.

What to do with the readings

A CGM report lets you work out a GMI and time in range, and you can keep notes in the private blood sugar log. Bring the report to your care team. See every device side by side in the CGM comparison.

Information only, not medical advice. Your care team may set different targets for you, and only a lab test ordered by a clinician can diagnose diabetes or prediabetes. See our medical disclaimer.