ActiGraph GT9XRecalls & reported problems
Actigraph L.L.C. · The GT9X is a body worn device that measures and records physical movement associated with daily activity and sleep. The GT9X is intended for use in applications where quantifiable measurement and storage of physical movement is desired. · Class 2
Data updated Oct 13, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 1
- Deaths reported
- 0
- Injuries reported
- 0
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 1 adverse event report that list this exact device (DI 00853048008015), received between Jul 2, 2019 and Jul 2, 2019.
The most frequently reported specific device problem is “Corroded” (1 report).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. How this data works · Data updated Oct 13, 2026.
Most reported problems
Device problems
- Corroded1
Patient problems
- Partial thickness (Second Degree) Burn1
- Reaction1
Recent adverse event reports
The 1 most recent of 1 reports, in the reporter's own words as published by the FDA.
Jul 2, 2019Corroded
ACTIGRAPH RECEIVED INFO FROM A CUSTOMER THAT A PARTICIPANT EXPERIENCED A SKIN REACTION ON "BURN" UNDER THE METAL ELECTRICAL CONTACTS OF A DEVICE. THIS DEVICE WAS NOT WORN IN THE NORMAL FASHION, THE WRIST HOLSTER, BUT INSTEAD PHYSICALLY SECURED TO THE USER'S CHEST VIA A TEGADERM PATCH FOR 48 HOURS. THE DISPLAY OF THE DEVICE WAS FACING OUT AND THE DEVICE CONTACT PINS WERE DIRECTLY TOUCHING THE SKIN. THE CUSTOMER REPORTED, THE ELECTRODES [ON THE BACK OF THE DEVICE] WERE CLEARLY CORRODED AND THERE WAS A GREENISH PATINA ON / IN THE PARTICIPANT'S SKIN. THE PARTICIPANT ALSO REPORTED THE "DEVICE FELT WARM (EVEN INDOORS IN AC)." HOWEVER, THE REPORTER CLARIFIED THAT IT WAS NOT A HEAT RELATED INJURY, BUT SPECULATED IT APPEARED TO BE MORE OF A CHEMICAL AND / OR ELECTRICAL REACTION WITH METAL CONTACTS; SPECIFICALLY THE LEFTMOST ELECTRODE. THE PARTICIPANT REPORTED THEY SOUGHT MEDICAL TREATMENT AND THE PHYSICIAN DESCRIBED THE REACTION AS A "2ND DEGREE BURN" AND PRESCRIBED AN ANTIBIOTIC TOPICAL OINTMENT. IT WAS REPORTED TO ACTIGRAPH THAT A SECOND PARTICIPANT WITHIN THE SAME STUDY NOTIFIED THEM OF HAVING SIMILAR SORES BUT WAS MUCH LESS SEVERE AND THEY DID NOT SEEK MEDICAL ATTENTION; IT SHOULD BE NO
Patient problems: Partial thickness (Second Degree) Burn; Reaction
MAUDE report 8760345 ↗
Other Exerciser, Measuring devices
- Digital Therapist 2Sword Health, S.A. · Exerciser, Measuring3 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 13, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 13, 2026
- Page last rebuilt: Oct 13, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
How reports and recalls are matched · Editorial policy · Report an error on this page