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Clinical / medical-grade · Patch / sensor · by iRhythm
iRhythm Zio (XT / AT)
A cardiologist-grade 14-day arrhythmia patch — where the patient never sees their own data.
Oct 2024Zio AT clearance (Zio monitor, 2023)
Mid-cycle1 yr 8 mo old
Clinical service, periodically updated.
API access: No Raw data access: No Open source: No public repo
Clinical value
90/100
Cardiologist-grade arrhythmia monitor
Empowerment
22/100
Clinician-only; lowest patient access
Everyday value
40/100
Single-use Rx patch, one-and-done
Clinically excellent and the opposite of patient-empowering: a prescription-only 14-day ECG patch whose data is processed by iRhythm and sent to the ordering physician. The patient is the monitored subject, not the data owner.
What it measures
Single-lead continuous ECG over up to 14 days for arrhythmia detection. Zio XT/monitor is retrospective long-term monitoring; Zio AT adds near-real-time mobile cardiac telemetry with clinician alerting.
Regulatory status
510(k)-cleared, prescription-only. Zio XT and the lighter Zio monitor are cleared for up to 14-day wear; Zio AT received a 2024 design-modification clearance. The ZEUS deep-learning analysis engine is FDA-cleared.
Validation & accuracy
iRhythm reports its algorithm is as accurate as cardiologists, with 99% of physicians agreeing with the end-of-wear report. Extensive peer-reviewed literature; the SHASTA-II validation study is ongoing.
Data control & export
A clinician-mediated model: the patient wears the patch, mails it back (or AT transmits), and iRhythm sends a comprehensive report to the ordering physician. The patient gets no raw data, no app, and no self-service export — the lowest data access in the directory.
Wearability & battery
A single-use adhesive chest patch worn continuously up to 14 days, then returned. No charging, water-resistant, no screen — one-and-done by design.
Cost & access
Prescription / physician-ordered only. Covered by most major insurers and Medicare (varies by payer); self-pay discount and income-based assistance available.
Who it serves
Highest clinical integration, lowest patient agency: prescription gatekeeping, proprietary processing, and a report that goes to the clinician rather than the patient.
Who is left out or burdened
Rx gatekeeping; the patient cannot access or export their own recording and depends entirely on the clinician to relay results.
✓ Strengths
- Cardiologist-grade 14-day continuous monitoring
- Extensive validation; FDA-cleared AI
- Real care-pathway integration
✕ Weaknesses
- Patient gets no raw data, no app, no export
- Prescription / physician-ordered only
- Single-use device
- Depends entirely on the clinician to relay results
90
Why this clinical score. A gold-standard, cardiologist-grade 14-day arrhythmia monitor with deep validation and real care-pathway integration — near the top of the clinical axis.
22
Why this empowerment score. The patient never sees their own data, cannot export it, and needs a prescription to obtain it — the clearest 'clinical but closed' case here, and the lowest empowerment score.
40
Why this everyday score. Effortless to wear and forget for two weeks, but it's single-use, single-purpose, screenless, and prescription-bound — minimal everyday role.
Latest news
Reviews & coverage
Clinicians and reviewers regard the Zio patch as a gold-standard extended ambulatory ECG, praised for up to 14-day wear and high diagnostic yield. It's prescription-only and lab-analyzed, so it's a clinical tool rather than a consumer wearable.
Summary is a draft synthesis of public coverage, not an endorsement. Links open a search of each outlet.
Reddit communities
Independent user communities where this device (or its category) is discussed.
Get it · manuals & support
Draft profile · public-source review, June 2026 · scores describe direction and degree, not buying advice. News, links, and prices change — verify with the manufacturer. Image is representative.