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Clinical / medical-grade · Other · by AliveCor

KardiaMobile 6L

The most validated personal ECG: a 6-lead reading in 30 seconds, free PDF export, no prescription.
Cardiovascular
2019KardiaMobile 6L (6L Max, May 2025)
Late in cycle7 yr old
Refreshed 2025 with the AI-powered 6L Max.
API access: No Raw data access: Yes — restricted Open source: No public repo
Clinical value
78/100
Best-validated personal ECG
Empowerment
88/100
You own it, you export it, freely
Everyday value
46/100
Carried, not worn; on-demand only
A patient-owned, over-the-counter 6-lead ECG with the deepest validation record of any personal ECG, and a PDF export a cardiologist can read — no prescription, no subscription required.
What it measures
On-demand 6-lead ECG in 30 seconds. FDA-cleared determinations: atrial fibrillation, bradycardia, tachycardia, normal sinus rhythm, plus an extended arrhythmia suite and QTc.
Regulatory status
510(k)-cleared — the first six-lead personal ECG (2019). Sold over-the-counter; later clearances added a multi-arrhythmia algorithm and QTc measurement.
Validation & accuracy
Most clinically validated personal ECG (185+ cited publications). In comparative testing: 100% AF sensitivity, 96.4% sinus-rhythm specificity; superior to single-lead personal ECGs.
Data control & export
Generates PDF ECG reports downloadable and shareable by email or direct to a clinician — and this works without any subscription.
Wearability & battery
Not worn — a card-sized pad you hold with thumbs and a knee for a 30-second reading. Coin-cell battery lasts about a year. Pocketable and on-demand, not continuous.
Cost & access
~$99–$130 one-time, OTC. Optional KardiaCare (~$99–$299/yr) adds cloud history and cardiologist reviews, but is not required for core ECG + PDF.
Who it serves
High patient agency: self-record anytime and export freely without a clinician or subscription.
Who is left out or burdened
Spot-check only (not continuous); no open raw-waveform API for consumers; advanced detections sit behind the optional subscription.
✓ Strengths
  • Most clinically validated personal ECG
  • 6-lead ECG in 30s; 100% AF sensitivity
  • Free clinician-grade PDF export, no subscription
  • OTC, no prescription; cheap one-time cost
✕ Weaknesses
  • Spot-check only — not continuous
  • Not worn (carried, taken on demand)
  • No open raw-waveform API for consumers
  • Advanced detections behind optional subscription
78
Why this clinical score. Cardiologist-readable 6-lead ECG with exceptional validation; capped below CGMs and the Zio patch because it is intermittent and arrhythmia-only.
88
Why this empowerment score. Patient owns the device, self-initiates, and exports a clinician-grade PDF for free — the subscription gates extras, not core function.
46
Why this everyday score. Scores low here by design: it isn't worn and does one on-demand job, so there's no continuous data and little day-to-day breadth — though the year-long battery is effortless.
Reviews & coverage

Reviewers consider KardiaMobile a pioneering, accurate personal ECG that's easy to use and clinician-friendly for AFib spot checks. The caveats are the subscription for advanced features and that it's a single-purpose card, not continuous.

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.