PlainRecalls
ModerateClass IIOngoing

FDA Devices recall · Reported May 20, 2026

Brand Name: Dexcom ONE+ Continuous Glucose Monitoring System Product Name: Dexcom ONE+ iOS CGM App Model/Catalog Number: SW14244 Software Version: versions 1.5.0 and 1.6.0 Product Description: Dexcom ONE+ iOS CGM App Component: Dexcom ONE+ Continuous Glucose Monitoring System

A software defect in which a low-priority file I/O check blocks the higher-priority thread responsible for processing estimated glucose values (EGVs) and trend arrows. When the ap…

Recall #
Z-2165-2026
Affected scope
70212
Initiated
April 14, 2026
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Dexcom, Inc. recalled Brand Name: Dexcom ONE+ Continuous Glucose Monitoring System Product Name: Dexcom ONE+ i… - a moderate-severity action.

Brand Name: Dexcom ONE+ Continuous Glucose Monitoring System Product Name: Dexcom ONE+ i… was recalled by Dexcom, Inc. in May 20, 2026. Reason: A software defect in which a low-priority file I/O check blocks the higher-priority thread responsible for pr…. Check the official notice for the remedy. Verify recall #Z-2165-2026 with the FDA Devices before acting.

The recall

Dexcom, Inc. issued this moderate-severity FDA Devices recall-A software defect in which a low-priority file I/O check blocks the higher-priority thread responsible for pr….

Moderate
severity level
70K units
affected scope
Class II
classification
May 20, 2026
reported

Sourced from official FDA Devices enforcement records. Verify recall #Z-2165-2026 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.

Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Medical Devices recalls over time

Where this recall sits in its category - 41,021 medical devices recalls on record

01,0002,0003,0004,000 20052008201120142017202020232026 1,947
Severity1906864652High severity (most serious)Moderate severityLow severity
Where this agency-classified recall sits among FDA Class I/II/III notices

Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified moderate severity.

Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.

Product description

Brand Name: Dexcom ONE+ Continuous Glucose Monitoring System Product Name: Dexcom ONE+ iOS CGM App Model/Catalog Number: SW14244 Software Version: versions 1.5.0 and 1.6.0 Product Description: Dexcom ONE+ iOS CGM App Component: Dexcom ONE+ Continuous Glucose Monitoring System

Reason for recall

A software defect in which a low-priority file I/O check blocks the higher-priority thread responsible for processing estimated glucose values (EGVs) and trend arrows. When the app is running in the background, EGV notifications may queue up and then "replay" sequentially when the user brings the app to the foreground, causing the Glucose Compass to flicker through previous EGVs. In more severe instances, the app may perceive signal loss and deploy signal loss mitigations. This delay in EGV and alert processing creates a risk that users may miss detection of a hypoglycemic or hyperglycemic event, or make treatment decisions based on outdated glucose information.

Recall Profile

Structured summary of the FDA Devices recall record
Attribute Value
Agency U.S. Food and Drug Administration
Severity class Moderate (Class II)
Status Ongoing
Recall number Z-2165-2026
Date reported May 20, 2026
Date initiated April 14, 2026
Recalling firm Dexcom, Inc.
Firm location San Diego, CA
Affected scope 70212
Distribution SW12300 & SW13355 Dexcom G7 iOS and watchOS app versions 2.9.0 through 2.11.2: Worldwide - US Nationwide including in the states of AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT,…

Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.

Scale of Impact

70212 units affected - limited or regional distribution scale.

Regional (<10K units) -
Multi-state (10K – 100K units) ✓ This recall
Large-scale (100K – 1M units) -
Massive (≥1M units) -

Bracket cutoffs follow federal recall-disclosure conventions; bar widths scale linearly within each bracket. Source: PlainRecalls analysis of U.S. Food and Drug Administration filings.

What to do with this recall

Match your product against the recall record, then act on the agency remedy.

  • Check the recall number (Z-2165-2026) and product description against the item you own. Search the archive
  • Confirm the current status with FDA Devices before acting, recall details can be updated.
  • Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled?
Brand Name: Dexcom ONE+ Continuous Glucose Monitoring System Product Name: Dexcom ONE+ iOS CGM App Model/Catalog Number: SW14244 Software Version: versions 1.5.0 and 1.6.0 Product Description: Dexcom ONE+ iOS CGM App Component: Dexcom ONE+ Continuous Glucose Monitoring System. Recalled by Dexcom, Inc.. Units affected: 70212.
Why was this product recalled?
A software defect in which a low-priority file I/O check blocks the higher-priority thread responsible for processing estimated glucose values (EGVs) and trend arrows. When the app is running in the background, EGV notifications may queue up and then "replay" sequentially when the user brings the app to the foreground, causing the Glucose Compass to flicker through previous EGVs. In more severe instances, the app may perceive signal loss and deploy signal loss mitigations. This delay in EGV and alert processing creates a risk that users may miss detection of a hypoglycemic or hyperglycemic event, or make treatment decisions based on outdated glucose information.
Which agency issued this recall?
This recall was issued by the FDA Devices on May 20, 2026. Severity: Moderate. Recall number: Z-2165-2026.
Where was the recalled product distributed?
Distribution: SW12300 & SW13355 Dexcom G7 iOS and watchOS app versions 2.9.0 through 2.11.2: Worldwide - US Nationwide including in the states of AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PR, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY. The countries of Austria, Australia, Belgium, Bahrain, Canada, Czech Republic, Germany, Denmark, Estonia, Finland, France, Hong Kong, Ireland, Israel, Iceland, Italy, Jordan, Japan, Kuwait, Luxembourg, Malta, Netherlands, Norway, New Zealand, Oman, Poland, Portugal, Qatar, Saudi Arabia, Singapore, Slovenia, Slovakia, South Africa, South Korea, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, United Kingdom. SW14245 Dexcom ONE iOS App versions 1.5.0 and 1.6.0 - Only International distribution to the countries of Andorra, Australia, Belgium, Bulgaria, Czech Republic, Estonia, France, Greece, Croatia, Ireland, Italy, Lithuania, Latvia, Malaysia, Monaco, Netherlands, New Zealand, Poland, Qatar, Romania, Saudi Arabia, Spain, Sweden, United Kingdom..
Should I stop using a recalled medication or medical device?
Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.

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This recall: FDA Devices, reported May 20, 2026. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026