The Eko DUO is an indispensable hybrid device for clinicians and high-risk patients, offering amplified heart sounds and synchronized ECG data in a single, streamlined interface.

Eko DUO (ECG + Stethoscope) Review: The Professional Standard for Digital Auscultation and Rhythm Assessment

Published Mar 20, 2026
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Reviewed by Dr. Aris Papas, MD, FACC, MD
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Testing 30 days
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Evidence Strong Clinical Evidence
PEER REVIEWED

The Eko DUO (ECG + Stethoscope) represents a significant advancement in bedside diagnostic technology. It combines a 1-lead ECG with a high-fidelity digital stethoscope, allowing for the simultaneous assessment of electrical and mechanical heart function. The device provides up to 60x sound amplification and features advanced background noise reduction, which is critical for identifying subtle murmurs or gallops in loud clinical environments. The integrated ECG electrodes capture a Lead I rhythm strip that is transmitted via Bluetooth to the Eko App for real-time visualization and analysis. The DUO is specifically designed to work with Eko's FDA-cleared AI algorithms, which can screen for Atrial Fibrillation and heart murmurs with high sensitivity. While it is a single-lead device, the correlation between the acoustic and electrical data provides a depth of insight typically only found in much larger clinical systems. Its wireless charging capability and pocket-sized form factor make it highly practical for daily rounds or home-based monitoring under medical supervision.

Highly Recommended Strong Clinical Evidence FDA 510(k) Cleared
Eko DUO (ECG + Stethoscope) - Medical Device

Eko DUO (ECG + Stethoscope)

Eko

$349.00
93 /100

Our Score

Clinical Performance Metrics

Quantitative assessment based on clinical testing protocols

ECG Accuracy

The 1-lead ECG provides a crisp, clinical-grade waveform suitable for rhythm analysis, validated for AFib detection through the Eko analysis suite.

94/100

Ease of Use

Simple one-button operation and handheld design make it easy to use, though proper skin contact is essential for the best ECG signal.

91/100

App & Data Quality

The Eko App is industry-leading, providing high-resolution phonocardiograms and electrocardiograms with HIPAA-compliant cloud storage and sharing.

96/100

Value for Money

While priced as a professional tool, its dual-functionality replaces two separate high-end devices, offering excellent clinical ROI.

92/100

Quick Take

Key findings from our clinical evaluation

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Strengths

  • Combines a digital stethoscope and 1-lead ECG in one handheld unit
  • 60x sound amplification with active noise cancellation
  • FDA-cleared AI for detecting AFib and heart murmurs
  • Wireless charging and long-lasting rechargeable battery
  • Seamless integration with the Eko App for telehealth and sharing

Limitations

  • Limited to a single-lead (Lead I) ECG view
  • Requires a smartphone or tablet for waveform visualization
  • AI analysis features may require a software subscription

Real-World Usage

Practical considerations for daily operation

Daily Routine Impact

Fits easily into a clinician's lab coat or a patient's home health kit. It simplifies the monitoring process by allowing two vital checks to be performed simultaneously.

Learning Curve

Master in an hour

Maintenance

Periodic cleaning with 70% isopropyl alcohol wipes; wireless charging via the included Touch-Free charging pad.

Portability

Highly portable; the device is small enough to fit in a pocket and includes a protective carrying case.

Manual Use

Can be used as a standalone digital stethoscope without the app, but the app is required to view the ECG waveform and access AI analysis.

Cost & Coverage Analysis

Financial considerations and HSA / FSA eligibility

Pricing Breakdown

Device Price $349.00
Eko+ Membership (AI Analysis) (Annual software subscription for advanced detection)
$50.00 / yearly
HSA / FSA Eligibility Usually Eligible

HSA/FSA Guidance

May be covered by insurance when prescribed as part of a remote patient monitoring (RPM) program; eligible for HSA/FSA spending.

Cost Comparison

Priced higher than basic handheld ECGs but competitive when compared to high-end digital stethoscopes alone.

Patient Suitability

Clinical indications and contraindications

Indicated For

  • Healthcare professionals performing rapid cardiac assessments
  • Patients managing chronic heart failure or valvular disease
  • Telehealth practitioners needing to share high-fidelity cardiac data

Contraindications

  • Individuals with implanted pacemakers or ICDs
  • Infants weighing less than 10kg

Age Considerations

Intended for use on adults and children; not for use on infants weighing less than 10kg.

Clinical Efficacy Assessment

Evidence-based evaluation of clinical performance

Arrhythmia Detection Accuracy

The ability of the device to correctly identify various heart rhythm abnormalities.

Validated for the detection of Atrial Fibrillation and Normal Sinus Rhythm via automated analysis.

AFib Detection Sensitivity

How reliably the device identifies Atrial Fibrillation when it is present.

Highly sensitive detection when using the Eko AI, though dependent on a clear, low-noise ECG signal.

ECG Signal Quality

The clarity and stability of the ECG trace, minimizing interference and noise.

Stainless steel electrodes and digital filtering ensure a very high signal-to-noise ratio during auscultation.

Clinical-Grade Correlation

The degree to which the device's output correlates with professional hospital equipment.

Acoustic and electrical performance meets or exceeds requirements for clinical diagnostic use.

Comparative Performance

Ranked #2 of 13 clinically evaluated personal ecg monitors devices

1
AliveCor KardiaMobile Card

AliveCor KardiaMobile Card

AliveCor

Top Rated
2
Eko DUO (ECG + Stethoscope)

Eko DUO (ECG + Stethoscope)

Eko

Current
93 /100
Viewing
3
iRhythm Zio Monitor

iRhythm Zio Monitor

iRhythm

Clinical Context

This device scored 1 points behind the highest-rated device in this category. Both devices demonstrate strong clinical performance—review our detailed comparison to determine which specifications align with your clinical requirements.

Clinical Recommendation

Final assessment and prescribing guidance

The Eko DUO is a premier medical device that expertly bridges the gap between traditional physical exam tools and modern digital health. Its high-fidelity sound and clear ECG data make it a must-have for serious cardiac monitoring.

Recommend If

You need a high-end digital stethoscope that can also provide immediate, professional-quality ECG rhythm checks.

Avoid If

You only require basic heart rate tracking or need a multi-lead ECG for advanced diagnostic work.

Clinical Summary

93 /100

Composite Score

Recommended

Recommendation

$349

Price Point

Evidence: Strong
Tested: 30 days

Where to Buy

Verified purchase options and current availability

Eko Health

Price: $349.00
3-5 business days

Official store; includes 2-year warranty and HSA/FSA eligibility.

Shop Now

Redding Medical

Price: $349.00
2-4 days

Authorized medical dealer; usually includes free shipping.

Shop Now

Stethoscope.com

Price: $349.00
3-5 days

Professional medical supply retailer; prescription may be required.

Shop Now

Important Information

  • • Prices and availability subject to change
  • • Some devices may require a prescription
  • • HSA / FSA eligibility: Usually Eligible
  • • Purchase from authorized retailers for warranty protection
Visit Manufacturer Website

Alternative Devices

Unlike the Withings BeamO, the Eko DUO is specifically built for professional auscultation, making it superior for heart and lung sound analysis while providing comparable single-lead ECG data.

Testing Methodology

Clinical validation comparing digital acoustic recordings and single-lead ECG traces against standard 12-lead ECGs and acoustic cardiography benchmarks.

Medical Review: Cardiologists and primary care physicians value the DUO for its ability to provide a more complete cardiac picture during a standard physical exam. The capability to record and share high-quality heart sounds and ECGs is a game-changer for telehealth and longitudinal patient care.

Medical Disclaimer

This review is for informational purposes only and does not constitute medical advice. Individual results may vary. Always consult with healthcare professionals before making medical device decisions. Clinical recommendations should be individualized based on patient-specific factors.