Dexcom G6
Dexcom
The 10-day CGM that became the compatibility backbone for many commercial and open-source loops. Dexcom ended G6 manufacturing after 1 July 2026; residual pharmacy or distributor stock may remain and unexpired supplies are still supported, but availability is no longer guaranteed. The phase-out is not a recall; separate open FDA corrections cover specified receivers and Android app version 1.15.0.
The scorecard
Pivotal accuracy was about 9% MARD and enabled non-adjunctive dosing, but newer G7-generation sensors are smaller, faster, and more accurate.[3]
A mature interstitial CGM with the usual physiological lag; newer sensors improve start-up and rapid-change performance rather than removing lag.
One of the broadest device ecosystems ever shipped, including Omnipod 5, Tandem pumps, iLet, and major open-source loops. That installed-base value persists only while compatible G6 supplies remain.[1]
Mature high, low, urgent-low-soon, sharing, and follower-alert ecosystem, though open FDA corrections cover missed receiver alarms and crashes in Android app version 1.15.0. Affected receivers/apps require the FDA- and manufacturer-specified replacement or update.[4]
Separate reusable transmitter, larger applicator and sensor profile, and a two-hour warm-up make it materially more burdensome than G7.
No ketone sensing — glucose only.
Manufacturing ended after 1 July 2026. Residual stock may remain and Dexcom supports unexpired supplies, but it explicitly cannot guarantee availability and directs users to G7 or G7 15 Day.[1]
The full picture
Dexcom G6 is the legacy sensor that made interoperable automated insulin delivery practical. It delivered factory-calibrated readings for ten days and became a supported input for Tandem, Omnipod 5, iLet, and multiple community-built loops.1 That breadth is why its disappearance matters beyond people using the Dexcom app alone.
The status changed on 1 July 2026. Dexcom says it no longer manufactures the G6 after that date. Pharmacies and distributors may still have stock for a while, and remaining unexpired sensors continue to work with their supported pumps, but Dexcom does not guarantee supply and directs users toward G7 or G7 15 Day.2 Dexcom's second-quarter SEC filing also describes G6 manufacturing as discontinued.3
The manufacturing phase-out itself is not a recall and the sensor did not suddenly stop working. It is a controlled product withdrawal. The practical distinction is important: "supported while unexpired stock lasts" is not the same as an available product a new user can reliably start.
Separate open recalls still matter. FDA's Class I Z-1943-2025 covers named G6 receiver SKUs whose speaker contact can fail, causing missed audible high/low alerts; the action is a serial-number check and free replacement if affected.4 Three same-event Class II receiver records, including Z-1202-2025, cover rare delayed or missed alarms and direct users to reset and update affected receivers.5 Class I Z-0318-2026 is narrower: the US G6/G6 Pro Android app version 1.15.0 can crash and stop readings and alerts, so Dexcom required an app update.6 These are receiver/app corrections, not the reason Dexcom stopped manufacturing G6 sensors.
References
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Shah VN, Laffel LM, Wadwa RP, Garg SK. Performance of a Factory-Calibrated Real-Time Continuous Glucose Monitoring System Utilizing an Automated Sensor Applicator. Diabetes Technology & Therapeutics (2018). https://doi.org/10.1089/dia.2018.0143 ↩
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Dexcom. Upgrade to Dexcom G7 or G7 15 Day from G6 (manufacturing ends after 1 July 2026; residual supply not guaranteed). https://www.dexcom.com/g6-transition ↩
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Dexcom, Inc. Quarterly Report on Form 10-Q for the quarter ended 30 June 2026. https://www.sec.gov/Archives/edgar/data/1093557/000109355726000143/dxcm-20260630.htm ↩
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U.S. FDA. Class I Device Recall Dexcom G6 Glucose Receiver — Z-1943-2025 (open; 36,824 receivers; serial check and replacement). https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfres/res.cfm?id=213506 ↩
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U.S. FDA. Class II Device Recall Dexcom G6 Receiver — Z-1202-2025 (one of three same-event open records; rare delayed/missed alerts; reset/update action). https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfres/res.cfm?id=211988 ↩
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U.S. FDA. Class I Device Recall Dexcom G6 Android app version 1.15.0 — Z-0318-2026 (open; app may crash and suppress readings/alerts; mandatory update). https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfres/res.cfm?id=216085 ↩
Sources
- [1]Dexcom G6 transition and manufacturing-end notice · manufacturer · 2026-07-01 — Dexcom states it no longer manufactures G6 after 1 July 2026, residual supply may remain but is not guaranteed, and remaining sensors can still connect to supported pumps.
- [2]Dexcom Form 10-Q for the quarter ended 30 June 2026 · manufacturer · 2026-07-23 — Confirms the planned discontinuation of Dexcom G6 manufacturing.
- [3]Performance of a Factory-Calibrated Real-Time Continuous Glucose Monitoring System Utilizing an Automated Sensor Applicator · peer-reviewed · 2018-06-13
- [4]FDA Class I recall Z-1943-2025 — Dexcom G6 receiver audible alerts · regulatory · 2025-06-16 — Open correction for 36,824 receivers worldwide. Speaker contact can fail and prevent audible high/low alerts; users must check the serial-number tool and obtain a replacement if affected.
- [5]FDA Class II recall Z-1202-2025 — Dexcom G6 receiver alert delay · regulatory · 2025-02-20 — One of three open same-event records covering rare delayed or missed G6 receiver alerts; FDA lists reset and software-update actions.
- [6]FDA Class I recall Z-0318-2026 — Dexcom G6 Android app 1.15.0 · regulatory · 2025-10-30 — Open correction for the US Android app release: version 1.15.0 can crash and suppress readings and alerts. Dexcom made updating mandatory.