iRhythm Zio Monitor vs Eko DUO (ECG + Stethoscope) - Clinical Comparison

Compare iRhythm Zio Monitor and Eko DUO (ECG + Stethoscope) side-by-side with clinical performance scores, FDA status, pricing, and expert recommendations

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iRhythm Zio Monitor

93 /100

Eko DUO (ECG + Stethoscope)

93 /100

iRhythm Zio Monitor

iRhythm

Score

Evidence

Strong

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Eko DUO (ECG + Stethoscope)

Eko

Score

Price

$349

Evidence

Strong

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Performance Metrics

iRhythm Zio Monitor

Eko DUO (ECG + Stethoscope)

Performance Metrics

iRhythm Zio Monitor

Eko DUO (ECG + Stethoscope)

ECG Accuracy

Measures how closely the device's rhythm recordings match clinical gold-standard ECG machines.

The Zio monitor records every heartbeat continuously with clinical-grade precision, validated against traditional hospital-grade ambulatory systems.

+4% better 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.

ECG Accuracy

Measures how closely the device's rhythm recordings match clinical gold-standard ECG machines.

+4% better

Ease of Use

Evaluates the simplicity of the hardware interface and the physical process of taking a reading.

Application is a simple 'peel and stick' process. There are no batteries to change or wires to manage; users simply press the center button to log symptoms.

+7% better 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.

Ease of Use

Evaluates the simplicity of the hardware interface and the physical process of taking a reading.

+7% better

App & Data Quality

Assesses the software interface, data visualization, and the reliability of automated analysis.

The MyZio app is highly effective for logging symptoms in real-time, though it does not show the live ECG trace to the user.

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

+11% better app & data quality

App & Data Quality

Assesses the software interface, data visualization, and the reliability of automated analysis.

+11% better

Value for Money

Compares the device's features and clinical utility against its market price and subscription costs.

As a prescription service, the value is found in its high diagnostic success rate, often preventing the need for repeat testing.

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

Value for Money

Compares the device's features and clinical utility against its market price and subscription costs.

Clinical Efficacy

iRhythm Zio Monitor

Eko DUO (ECG + Stethoscope)

Clinical Efficacy

iRhythm Zio Monitor

Eko DUO (ECG + Stethoscope)

Arrhythmia Detection Accuracy

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

Continuous recording ensures that every arrhythmia occurring during the wear period-from AFib to VT-is captured and analyzed.

+9% better arrhythmia detection accuracy

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

Arrhythmia Detection Accuracy

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

+9% better

AFib Detection Sensitivity

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

The 14-day monitoring window provides a much higher sensitivity for paroxysmal AFib compared to 24-hour or spot-check monitors.

+8% better afib detection sensitivity

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

AFib Detection Sensitivity

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

+8% better

ECG Signal Quality

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

The patch design minimizes motion artifacts and cable noise, though signal quality depends on proper skin preparation and adhesive integrity.

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

+1% better ecg signal quality

ECG Signal Quality

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

+1% better

Clinical-Grade Correlation

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

The final reports are physician-ready and widely accepted across cardiology practices as definitive diagnostic evidence.

+5% better clinical-grade correlation

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

Clinical-Grade Correlation

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

+5% better

Specifications

Specification	iRhythm Zio Monitor	Eko DUO (ECG + Stethoscope)
Price	N/A	$349
FDA Status	FDA 510(k) Cleared	FDA 510(k) Cleared
Clinical Evidence	Strong Clinical Evidence	Strong Clinical Evidence
Clinical Recommendation	Highly Recommended	Highly Recommended
Connectivity	bluetooth	bluetooth

iRhythm Zio Monitor

Strengths

✓ Continuous 14-day recording captures infrequent symptoms
✓ Completely wireless, allowing for normal daily activity and exercise
✓ Water-resistant design permits showering while wearing the patch
✓ Professional analysis of data by certified technicians
✓ High patient compliance due to simple 'apply and forget' design

Limitations

× Requires a physician's prescription to use
× No real-time ECG viewing for the patient
× Potential for skin irritation from long-term adhesive contact

Eko DUO (ECG + Stethoscope)

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

Expert Review Summary

Our clinical assessment and verdict for each device

iRhythm Zio Monitor

Highly Recommended

"The Zio Monitor is the premier clinical solution for long-term ambulatory monitoring, offering unmatched patient compliance and diagnostic yield."

The iRhythm Zio Monitor represents the pinnacle of 'wear and forget' medical technology. Unlike traditional Holter monitors that only record for 24-48 hours, the Zio patch provides continuous single-lead ECG recording for up to 14 days. This extended duration significantly increases the probability of detecting transient arrhythmias, such as paroxysmal atrial fibrillation or symptomatic bradycardia. The device is a small, water-resistant adhesive patch with no external wires or electrodes, which drastically improves patient compliance compared to bulky alternatives. Clinical data shows that the Zio monitor's long-term recording capability leads to a higher diagnostic yield and more definitive clinical actions. Data is analyzed by iRhythm's proprietary AI and certified cardiographic technicians, culminating in a comprehensive report for the prescribing physician. While it does not provide real-time feedback to the patient, its clinical accuracy and ease of use make it the preferred choice for professional diagnostic monitoring.

Strong Clinical Evidence

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Eko DUO (ECG + Stethoscope)

Highly Recommended

"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."

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.

Strong Clinical Evidence

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Where to Buy

Verified purchase options and current availability

iRhythm Zio Monitor

Top Choice

iRhythm Technologies (Prescription Service)

2-5 days Prescription required; typically covered by Medicare and most commercial insurance plans. Patients may owe a deductible/copay.

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Byram Healthcare

3-7 days Authorized medical supplier for cardiac telemetry; requires physician order and insurance verification.

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Manufacturer Site

HSA/FSA: Usually Eligible

Eko DUO (ECG + Stethoscope)

$349 MSRP

Eko Health

$349.00

3-5 business days Official store; includes 2-year warranty and HSA/FSA eligibility.

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Redding Medical

$349.00

2-4 days Authorized medical dealer; usually includes free shipping.

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Stethoscope.com

$349.00

3-5 days Professional medical supply retailer; prescription may be required.

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Manufacturer Site

HSA/FSA: Usually Eligible

Important Purchase Considerations

• Prices shown are current as of the last update and may vary. Always verify pricing at the retailer's website.
• Some medical devices may require a prescription. Check with your healthcare provider before purchasing.
• Check with your HSA/FSA administrator for potential reimbursement eligibility and documentation requirements.
• Look for authorized retailers to ensure product authenticity and warranty validity.