You’re in a patient room with the monitor alarming, the IV pump beeping, and a family member asking questions. You press your stethoscope to the chest and try to pick out one faint murmur or a few crackles at the bases. Anyone who has worked ICU, ER, or a busy med-surg floor knows that moment. Hearing isn’t the problem. The room is.
That’s the exact problem the Eko CORE 500 was built to solve. It’s also why so many nurses are asking the same question right now: is the Eko CORE 500 worth about $450, or should you just buy a good acoustic stethoscope and move on?
I’ll give you an honest answer. This is an editorial review based on Eko’s published specs, its support documentation, and the experiences nurses and clinicians commonly report. We haven’t tested the device ourselves, and we won’t pretend otherwise. What we can do is tell you who it’s actually for, what the downsides are, and what to check before you spend the money.
Quick Verdict: Eko CORE 500
Nurselly Editorial Rating: 4.4 out of 5
Best for: ICU, cardiac, ER, and step-down nurses; nurse practitioners; clinicians working in noisy units; nurses with hearing difficulties.
Biggest strength: Amplified, noise-reduced digital audio, a 3-lead ECG, and a built-in display in one device.
Biggest drawbacks: The price, the fact that it’s digital-only (no acoustic mode), and the fact that some of the smartest features sit behind an Eko+ subscription.
Skip it if: You want a simple, no-charging, no-app stethoscope that will outlast three jobs.
[CTA: Check Eko CORE 500 Price]
Important before you buy: The CORE 500 is not simply a louder Littmann. It’s a digital-first stethoscope with ECG, a display, app connectivity, and optional AI features. Eko describes it as fully digital, which means there’s no analog “backup” listening mode. If you prefer traditional acoustic listening, a different stethoscope may be the better fit.
Eko CORE 500 at a Glance
| Feature | Eko CORE 500 |
|---|---|
| Type | Fully digital stethoscope |
| Amplification | Up to 40× |
| Noise cancellation | Active noise cancellation (TrueSound™) |
| ECG | 3-lead ECG capture (1-lead strip shown on the device) |
| Display | Full-color display |
| Audio filters | Cardiac, Pulmonary, Wide |
| Heart rate | Real-time |
| Connectivity | Bluetooth through the Eko App (iOS and Android) |
| Battery | Up to 60 hours (manufacturer claim) |
| Weight | About 6.6 oz (186 g) |
| Water resistance | IP44 |
| AI features | Structural murmur and AFib detection with Eko+ |
| Typical price | Around $449 (check current pricing) |
One note on ECG terminology, because it trips people up. The device captures a 3-lead ECG, but the on-device screen shows a single-lead strip. Eko points users to the app to view the full 3-lead tracing.
What Is the Eko CORE 500?
The Eko CORE 500 is a digital stethoscope that converts body sounds into an electronic signal, cleans them up, amplifies them, and sends them to speakers built into the earpiece. There’s no column of air traveling through tubing to your ears like a traditional stethoscope. That’s why it can do things an acoustic stethoscope can’t: boost quiet sounds, filter background noise, show a waveform, and record.
It’s also why it has no analog mode. Eko says the CORE 500 is digital-only, so if the battery dies mid-shift, you’re not listening until you recharge.
How the Eko CORE 500 Works
The signal path is simple:
Chestpiece picks up sound → digital processing → filtering and amplification → in-ear speakers → optional recording and analysis in the Eko App
You choose a filter, adjust the volume, and listen. If you want to record, view the full ECG, or use the AI features, you pair it with the app on your phone.
Eko CORE 500 Features: What Matters on Shift
Up to 40× Sound Amplification
Amplification means the device makes quiet sounds louder before they reach your ears. For a nurse listening to a soft S3, faint wheezes, or diminished breath sounds on a large patient, that extra volume can make the difference between “I think I heard something” and “yes, that’s there.”
You don’t need 40× all the time. Most nurses will use a moderate level and bump it up for tough patients.
TrueSound™ and Active Noise Cancellation
This is the feature nurses talk about most. TrueSound combines background-noise reduction, filtering, and in-ear speakers to improve clarity. In a hospital, that means less competition from alarms, hallway chatter, and equipment hum.
Does it change the listening experience? Yes. It sounds cleaner and more “isolated” than an acoustic stethoscope. Some nurses love that. Others say it takes a shift or two to trust it because it doesn’t sound quite like the analog sound they trained on.
Cardiac, Pulmonary, and Wide Audio Filters
| Filter | Best for | When you’d realistically use it |
|---|---|---|
| Cardiac | Heart sounds | Cardiac assessment, murmurs, post-op cardiac patients |
| Pulmonary | Lung sounds | Respiratory assessment, wheezes, crackles |
| Wide | General body sounds | Bowel sounds, bruits, a quick general listen |
Eko says each filter is tuned for a different frequency range. In practice, you’ll flip between cardiac and pulmonary constantly during a head-to-toe assessment.
Built-In 3-Lead ECG
This is the CORE 500’s biggest differentiator. Using electrodes in the chestpiece, it captures a 3-lead ECG when the device is in contact with skin. That’s useful at the bedside when you want a quick look at rhythm while you’re already listening.
Two things to understand:
- ECG needs skin contact. It won’t capture through a gown.
- It isn’t a diagnostic tool by itself. Eko is clear about this. It’s a screening and assessment aid, not a replacement for a 12-lead or a provider’s interpretation.
Real-Time Heart Rate and Full-Color Display
The display shows heart rate, ECG, battery, Bluetooth status, active filter, and recording indicators. Seeing a heart rate while you listen lets you confirm what you hear without reaching for the monitor.
Bluetooth and Wireless Listening
The CORE 500 connects to the Eko App via Bluetooth. From there, you can route audio to compatible wireless headphones or hearing aids. One nuance: the stethoscope itself doesn’t pair directly with those devices. The app handles the connection.
For nurses with hearing loss, this is a big deal. See our guide to the best stethoscope for hearing impaired nurses [INTERNAL LINK: best-stethoscope-for-hearing-impaired-nurse].
Recording and Sharing
You can record heart and lung sounds, play them back, and share them with colleagues, which is handy for documentation and teaching. How much you can save and share depends on your Eko+ status (more below).
Eko AI Features
With an Eko+ membership, the app can flag signs of atrial fibrillation and structural murmurs. Eko markets this as AI-supported detection.
Treat it like a second set of eyes, not a diagnosis. A flag means “take a closer look.” Your assessment and your provider still make the call.
[CTA: See Current Eko CORE 500 Pricing]
Eko+ Subscription: What’s Free and What’s Paid
This is where a lot of buyers get surprised, so let’s lay it out plainly. The stethoscope works without a subscription. The app has a free tier, and an optional Eko+ membership unlocks the advanced features. Eko’s own documentation notes that feature availability can depend on your membership tier and your country.
| Feature | Free Eko App | Eko+ membership |
|---|---|---|
| Listening on the stethoscope | Yes | Yes |
| Real-time ECG and waveform view | Yes | Yes |
| Wireless listening | Yes | Yes |
| Audio filters | Yes | Yes |
| Single recording and playback | Yes | Yes |
| AI murmur and AFib detection | No | Yes |
| Unlimited saved recordings | No | Yes |
| Patient profiles and PDF reports | No | Yes |
| Secure sharing | Limited | Yes |
| Web dashboard | No | Yes |
What does Eko+ cost? Eko’s current listing shows a 14-day free trial with purchase, then $12.99 per month or $119.99 per year. Pricing and terms can change, so verify before you buy.
Here’s the honest take. If all you want is a great-sounding stethoscope with ECG on the screen, you can skip the subscription. If you want saved recordings, reports, or AI flags, plan for that yearly cost on top of the device. Do the math before you order, not after.
One tip: If you start the free trial, set a calendar reminder. It converts to a paid membership unless you cancel before it ends.
Eko CORE 500 Review: Our Editorial Ratings
These are editorial ratings based on specifications, manufacturer documentation, and commonly reported user experiences. They are not the result of our own hands-on lab testing.
| Category | Rating |
|---|---|
| Sound quality | ⭐⭐⭐⭐⭐ |
| Noise cancellation | ⭐⭐⭐⭐⭐ |
| Amplification | ⭐⭐⭐⭐⭐ |
| ECG | ⭐⭐⭐⭐½ |
| Ease of use | ⭐⭐⭐⭐ |
| Comfort | ⭐⭐⭐⭐ |
| Battery | ⭐⭐⭐⭐⭐ |
| App experience | ⭐⭐⭐⭐ |
| Durability | ⭐⭐⭐⭐ |
| Value | ⭐⭐⭐⭐ |
Eko CORE 500 Sound Quality
Sound quality is the number one reason people consider the CORE 500, so let’s get specific.
Heart sounds. The Cardiac filter and amplification help most with soft S1/S2 on larger patients and with subtle murmurs. Nurses and clinicians who work in cardiac settings often say this is where digital audio earns its keep.
Lung sounds. The Pulmonary filter helps with fine crackles and faint wheezes, especially when the room is noisy or the patient is shallow breathing.
Low-frequency sounds. S3, S4, and low-pitched murmurs are traditionally the harder ones to catch. Amplification helps, though some experienced listeners take time to adjust to how digital low-frequency sound feels compared to analog.
Noisy hospitals. This is the CORE 500’s strongest argument. In a loud ER bay or an ICU with several alarms going, noise cancellation can make a real difference.
Does 40× actually matter? For many nurses, a moderate setting does most of the work. The extra headroom matters mainly for challenging patients and for nurses with hearing loss. It’s nice to have, but it’s not the reason to buy.
If you work in a quiet clinic with good hearing, the upgrade will feel less dramatic. If you work nights on a loud unit, it can feel like turning the room down.
[CTA: Check Eko CORE 500 Price]
Eko CORE 500 Comfort and Ergonomics
This is where digital meets reality at hour ten of a twelve.
- Weight: About 6.6 oz (186 g). It’s noticeable around the neck compared with a lightweight acoustic stethoscope. Most people adapt, but if you’re prone to neck strain, think about it.
- Earpiece and ear tips: The earpiece is removable, and replacement tips are sold in multiple sizes. Because the in-ear seal is part of how the sound stays clean, getting the right tip size matters more than it does with an acoustic stethoscope.
- Controls: Buttons sit on the chestpiece. Filter switching is quick once you learn it, and one-handed use is realistic.
- Pocket and storage fit: The chestpiece is bulkier than a classic acoustic one, so it may feel snug in a small scrub pocket. Eko sells a case if you’d rather protect it in a bag or locker.
Eko CORE 500 Battery Life
Eko advertises up to 60 hours of regular clinical use, and it charges via USB-C. For most nurses, that’s several full shifts between charges, and it auto-powers off when idle.
Real-world battery life varies with volume, ECG use, and Bluetooth streaming. Because it’s digital-only, a dead battery means no listening, so plug it in regularly rather than letting it ride to zero.
Is the Eko CORE 500 Durable?
Eko rates the device IP44, which means it handles splashes but isn’t meant to be dunked. It’s built to be scratch and splash resistant, and Eko reports drop and shock testing during development.
The weak spot, based on Eko’s own policies, is the display. A cracked screen can’t be repaired on its own, and Eko’s replacement option is to replace the whole chestpiece. That’s worth knowing if you’re the type to drop things in a hurry.
Cleaning and Infection Control
This is a question nurses ask constantly, so let’s answer it clearly.
Eko says the CORE 500 should be cleaned between uses and that all external surfaces can be wiped with isopropyl alcohol wipes or hospital-grade disinfectant wipes. Make sure it’s completely dry before use. Do not submerge it, and do not autoclave it.
For isolation rooms (C. diff, MRSA, and so on), follow your facility’s policy and check Eko’s manual before using a specific wipe regularly. When in doubt, ask infection prevention which wipes they approve for electronic devices.
Eko CORE 500 Pros and Cons
Pros
- Up to 40× amplification for hard-to-hear patients
- Active noise cancellation for loud units
- Three audio filters for heart, lungs, and general sounds
- Integrated 3-lead ECG capture
- Built-in full-color display with real-time heart rate
- Wireless listening via the Eko App
- Recording and sharing capabilities
- AI features available with Eko+
- Long battery life of up to 60 hours
Cons
- Expensive compared with acoustic options
- Digital-only, with no analog listening mode
- Some functions depend on the app
- Eko+ is a recurring cost for the advanced features
- More technology to manage, charge, and clean
- ECG is a bedside aid, not a substitute for a diagnostic ECG
- A cracked display means replacing the chestpiece
Who Is the Eko CORE 500 Best For?
ICU nurses. Alarms, pumps, and ventilators make for a tough listening environment. Noise cancellation and amplification are most useful here. See also our guide to the best stethoscope for ICU nurses [INTERNAL LINK: best-stethoscope-for-icu-nurses].
Cardiac nurses. On a cardiac unit, built-in ECG, a heart rate readout, and a cardiac filter in one device fit the workflow nicely.
ER nurses. Fast assessments in loud environments are the CORE 500’s wheelhouse, though ECG needs skin contact, which isn’t always practical in a chaotic trauma bay.
Nurse practitioners. Recording and reports can help with documentation, particularly if you pay for Eko+.
Medical and nursing students. It’s a great learning tool because you can see and replay sounds. But at this price, most students are better served by a solid acoustic stethoscope first. See our best stethoscope for nursing students [INTERNAL LINK: best-stethoscope-for-nursing-students] guide.
Nurses with hearing difficulties. Amplification plus wireless routing to compatible hearing devices can be life-changing. This is arguably the strongest “why buy” case of all.
Who Should NOT Buy the Eko CORE 500?
We’d rather you buy the right stethoscope than the fanciest one. Skip it if you:
- Want a traditional acoustic stethoscope you can grab and use with no charging
- Don’t need amplification
- Don’t care about ECG
- Don’t want to use an app
- Don’t want any subscription-based features
- Are on a tight budget (nursing students, take note)
- Want something as simple as possible
If that sounds like you, there’s no shame in a classic.
Eko CORE 500 vs the Competition
Eko CORE 500 vs Littmann CORE
| Feature | Eko CORE 500 | Littmann CORE |
|---|---|---|
| Digital | Yes | Yes |
| Analog mode | No | Yes |
| Integrated 3-lead ECG | Yes | No |
| Built-in display | Yes | No comparable display |
| Amplification | Up to 40× | Digital amplification |
| Noise cancellation | Yes | Yes |
| AI | With Eko+ | Through the Eko ecosystem |
| Best for | Digital-first users | Hybrid analog/digital users |
The simplest way to think about it: the Littmann CORE keeps the familiar analog fallback. The Eko CORE 500 goes all-in on digital and adds ECG and a display. If you want a safety net, Littmann is more comforting. If you want more data at the bedside, the CORE 500 offers more. See our full Eko vs Littmann CORE comparison [INTERNAL LINK: eko-vs-littmann-core].
Eko CORE 500 vs Littmann Cardiology IV
This is the comparison many nurses are really making. Should you spend $450 and manage a battery and app, or spend a fraction of that on a premium acoustic stethoscope that needs no charging and can last for years?
If your units are quiet, your hearing is good, and you just want reliable sound, the Cardiology IV is the smarter spend. If you work in noisy environments, struggle to hear subtle sounds, or want ECG and recording, the CORE 500 offers things an acoustic stethoscope simply can’t. See our Littmann Cardiology IV review [INTERNAL LINK: littmann-cardiology-iv-review].
Eko CORE 500 vs Eko CORE Digital Attachment
The CORE Digital Attachment turns many compatible acoustic stethoscopes into digital ones, so you keep analog functionality while adding amplification and noise cancellation.
- Already own a premium Littmann? The Digital Attachment may make more sense.
- Want ECG and a display? Choose the CORE 500.
- Want analog plus digital? Digital Attachment.
- Want the most advanced all-in-one Eko experience? CORE 500.
Eko CORE 500 vs Eko DUO
The main differences: the CORE 500 offers 3-lead ECG and a built-in display, while the DUO has a 1-lead ECG and a different form factor. If ECG depth and a display matter, the CORE 500 is the stronger pick.
[CTA: See Current Eko CORE 500 Price]
Hospital IT, Bluetooth, and Using It on the Floor
Some hospitals restrict personal devices, Bluetooth pairing, or app use on clinical units, especially around patient data and recordings. Check your facility’s policy first. The stethoscope works for listening and on-screen readings, but saved recordings, reports, and wireless audio depend on the app. If your hospital doesn’t allow it, you’ll be using it as a standalone digital stethoscope.
Eko CORE 500 Price: Is It Worth the Money?
At around $449 (plus optional Eko+ costs), the CORE 500 is a premium purchase. So what are you paying for?
- Digital audio, amplification, and noise cancellation
- A built-in ECG and display
- App connectivity, recording, sharing, and AI (with Eko+)
Break It Down by Shift
If you work roughly 150 shifts a year and keep the device for three years, that’s around 450 shifts. At about $450, you’re spending roughly $1 per shift for a tool you use all day, every day. That’s less than the coffee most of us grab on the way in.
Worth it for:
- ICU and cardiac clinicians
- Anyone in noisy environments
- Clinicians who benefit from amplification
- Nurses who want ECG and auscultation in one device
Probably not worth it for:
- Students on tight budgets
- Anyone who just wants a reliable acoustic stethoscope
- Users who don’t need digital features
Also think about what a missed sound can cost. The point of better auscultation isn’t convenience. It’s confidence in what you’re hearing.
Returns and Warranty
Policies vary by seller and region, and they change. Eko’s published warranty page lists a one-year warranty worldwide and two years in EMEA for the CORE 500, while some retailer listings advertise a risk-free trial window (commonly 30 to 75 days). Because terms differ by where you buy, read the current return and warranty policy before checking out. Buying from Eko or an authorized seller also helps keep warranty coverage simple.
What Comes in the Eko CORE 500 Box?
- CORE 500 chestpiece
- Removable earpiece
- USB-C charging cable
- Ear tips
- Alcohol wipes
- Quick-start guide
- Access to the Eko App, with a 14-day Eko+ trial on current purchases
How to Use the Eko CORE 500
- Charge the device with the USB-C cable.
- Install the Eko App on your iOS or Android phone.
- Pair the device through Bluetooth.
- Select an audio filter: Cardiac, Pulmonary, or Wide.
- Adjust the volume to a comfortable level.
- Position the chestpiece firmly on the patient.
- Use ECG when appropriate, making sure the chestpiece touches bare skin.
- Record if needed, following your facility’s policies.
- Review or share the results through the app.
Eko CORE 500 FAQs
Is the Eko CORE 500 worth it?
For nurses in noisy units, with hearing challenges, or who want ECG and auscultation in one device, yes, it’s often worth it. For nurses who want a simple stethoscope, probably not.
Is the Eko CORE 500 better than Littmann?
It depends on what you want. It offers more tech (ECG, display), but the Littmann CORE keeps an analog mode. A Littmann acoustic model like the Cardiology IV is simpler and cheaper.
Does the Eko CORE 500 have an ECG?
Yes. It captures a 3-lead ECG with skin contact, and shows a single-lead strip on its display. Use the app for the full view. It isn’t a standalone diagnostic tool.
Is the Eko CORE 500 FDA cleared?
Eko lists the device and its AI features as FDA cleared, with AI availability depending on your country. Confirm current clearances on Eko’s site.
Does the Eko CORE 500 work with Bluetooth headphones?
Yes, through the Eko App. The stethoscope itself doesn’t pair directly with the headphones.
Does the Eko CORE 500 require a subscription?
No, but advanced features like AI detection and unlimited saved recordings require Eko+.
How long does the Eko CORE 500 battery last?
Eko advertises up to 60 hours of regular clinical use. Your actual time will vary.
Can you use the Eko CORE 500 without the app?
You can listen and view on-screen readings, but recording, wireless audio, and AI features rely on the app (which works on both iPhone and Android).
Can the Eko CORE 500 be used with hearing aids?
Yes, with compatible hearing aids or devices, routed through the Eko App. Check compatibility with your specific model.
Can the Eko CORE 500 replace a traditional stethoscope?
For many clinicians, yes. But since it’s digital-only, some people keep an acoustic backup.
What’s the difference between the Eko CORE 500 and the Eko CORE?
The CORE 500 is a complete digital stethoscope with 3-lead ECG and a display. The CORE Digital Attachment adds digital features to compatible acoustic stethoscopes.
Final Verdict: Should You Buy the Eko CORE 500?
Here’s the bottom line, no hype.
🟢 Buy It If
You work in a loud unit, want better sound, or need amplification. You also like the idea of ECG, recording, and AI-assisted flags in one tool. For ICU, cardiac, and ER nurses, it’s one of the most capable options out there.
🟡 Consider It If
You’re curious about digital stethoscopes but unsure the extras justify the cost. Try the Eko+ trial, read the current return policy, and decide with real numbers in front of you.
🔴 Skip It If
You simply want a dependable, simple, no-charging acoustic stethoscope. A premium acoustic model will serve you well for years.
Pricing and terms change, so check the latest details before you buy.
[CTA: Check Eko CORE 500 Price & Availability →]
Looking for more options? Browse our best digital stethoscopes [INTERNAL LINK: best-digital-stethoscopes] guide and our best stethoscope for nurses [INTERNAL LINK: best-stethoscope-for-nurses] roundup.