AliveCor KardiaMobile Card vs Eko DUO (ECG + Stethoscope) - Clinical Comparison

Compare AliveCor KardiaMobile Card and Eko DUO (ECG + Stethoscope) side-by-side with clinical performance scores, FDA status, pricing, and expert recommendations

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AliveCor KardiaMobile Card

94 /100

+1% higher overall score

Eko DUO (ECG + Stethoscope)

93 /100

Top Rated

AliveCor KardiaMobile Card

AliveCor

Score

Price

$109

Evidence

Strong

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Eko DUO (ECG + Stethoscope)

Eko

Score

Price

$349

Evidence

Strong

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Performance Metrics

AliveCor KardiaMobile Card

Eko DUO (ECG + Stethoscope)

Performance Metrics

AliveCor KardiaMobile Card

Eko DUO (ECG + Stethoscope)

ECG Accuracy

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

Leverages AliveCor's FDA-cleared KAl platform, delivering high-fidelity waveforms that correlate closely with standard diagnostic Lead I EKG recordings.

+1% 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.

+1% better

Ease of Use

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

Operation is exceptionally simple: tap the power button and place fingers on the two top-surface electrodes for 30 seconds.

+8% 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.

+8% better

App & Data Quality

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

The Kardia app provides high-resolution PDF exports and a clear 'History' section for tracking all previous recordings and analysis results.

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

+2% better app & data quality

App & Data Quality

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

+2% better

Value for Money

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

High value for the portability and clinical clearance, though the non-replaceable battery limits the device's long-term service life to 1-2 years.

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

+3% better value for money

Value for Money

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

+3% better

Clinical Efficacy

AliveCor KardiaMobile Card

Eko DUO (ECG + Stethoscope)

Clinical Efficacy

AliveCor KardiaMobile Card

Eko DUO (ECG + Stethoscope)

Arrhythmia Detection Accuracy

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

Validated for the detection of Normal Sinus Rhythm, Atrial Fibrillation, Bradycardia, and Tachycardia.

+4% 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.

+4% better

AFib Detection Sensitivity

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

Uses proprietary algorithms to identify potential AFib markers with high sensitivity, though users are cautioned to have all results reviewed by a physician.

+4% 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.

+4% better

ECG Signal Quality

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

Provides clear Lead I views; however, signal quality can be degraded by physical activity or nearby electronic equipment.

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

+5% better ecg signal quality

ECG Signal Quality

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

+5% better

Clinical-Grade Correlation

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

Meets IEC 60601-1-11:2015 standards for medical electrical equipment used in home healthcare environments.

+1% 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.

+1% better

Specifications

Specification	AliveCor KardiaMobile Card	Eko DUO (ECG + Stethoscope)
Price	$109	$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

Value for Money

94 score / $109

86.2

value score

224% better value

93 score / $349

26.6

value score

Value score = Performance score ÷ Price × 100

AliveCor KardiaMobile Card

Strengths

✓ Ultra-slim credit card design fits easily in any standard wallet
✓ IPX8 waterproof rating allows immersion up to 2 meters for 1 hour
✓ Instant analysis for AFib, Bradycardia, Tachycardia, and Sinus Rhythm
✓ Bluetooth connectivity ensures wireless data transfer to mobile devices
✓ Easy PDF sharing of historical EKG reports with healthcare providers

Limitations

× Non-replaceable internal battery limits overall device lifespan
× Single-lead only; lacks the multi-lead depth of clinical machines
× Requires a compatible smartphone or tablet to view or analyze data

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

AliveCor KardiaMobile Card

Highly Recommended

"The most portable clinical-grade EKG monitor available, fitting directly into a wallet for on-demand cardiac checks without the need for wires or gels."

The AliveCor KardiaMobile Card (Model AC-021) is a revolutionary step in personal cardiac monitoring, distilling the technology of a single-lead EKG into a credit-card-sized form factor. The device uses Bluetooth Low Energy to transmit data to the Kardia app, providing users with an 'Instant Analysis' of their heart rhythm. It is specifically designed to detect Atrial Fibrillation, Bradycardia, Tachycardia, and Normal Sinus Rhythm. A standout technical feature is its IPX8 rating, ensuring protection against water immersion for up to an hour. While the device features a non-replaceable battery, its ultra-slim design and clinical validation make it a top-tier choice for those needing reliable rhythm tracking on the go. The system provides professional-grade rhythm strips that can be easily shared with healthcare providers via email or PDF, though a data connection is required for cloud synchronization.

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

AliveCor KardiaMobile Card

Top Choice

$109 MSRP

Kardia.com

$109.00

3-5 business days Official store; HSA/FSA eligible.

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Amazon

$109.00

1-2 days (Prime) Free shipping and returns; frequently includes bundled offers.

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Best Buy

$109.00

Same-day pickup In-store availability varies by location.

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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.