ALICE FERNG

Arriving in two boxes reminiscent of Apple product packaging – one for the chest piece (the part that contacts the body), and another for the detachable earpiece (tubes + ear tips) – the CORE 500 is clearly an upgrade from the Eko DUOstethoscope. Similar to its predecessor, the CORE 500 can be used with your own headphones, smart phone, and just the chest piece, making it free of any hassle with the earpiece tubes. It has a USB-C charging port and is good for a continuous five-hours of use.

The CORE 500 chest piece itself is a bit heavier than the DUO at 6.6 oz (instead of 3.6 oz), but the construction feels a lot more sturdy and satisfying to hold. It’s durable and has a form factor that’s more familiar and comparable to the conventional stethoscopes that most people are used to wielding (such as the Littmann Classic III).

This brings us to the burning question: does it work?

In short, yes. It works pretty well, especially with the up-to-40X digital amplification.

The Eko CORE 500 stethoscope boasts Eko’s most premium and clearest digital audio to date, built with TrueSound technology and active noise cancellation.

When testing this device outside, with airplanes overhead and car traffic nearby, it was not a problem to hear any of the sounds while testing out different filters. Both using the provided earpiece (ear tips + tubes), or your own earbuds to listen, heart, lung, and bowel sounds could all be heard as expected. We used Apple AirPods Pro (2nd gen) with active noise cancellation and the effect is similar to using the provided noise isolation eartips and earpiece.

With the external environment at its loudest, the volume had to be turned up to max, with noise cancellation on, but the amplification allowed the appropriate sounds to come through. Using a regular non-digital stethoscope in this same environment, it was a struggle to hear most sounds when the environment was loud and noisy. Of course, there is also the option to play any sounds directly from the speakers of your phone (or an external speaker your phone is connected to), though in most real-life situations earbuds or earpieces would be ideal.

Let’s also talk about the ECG features onboard the chest piece. The CORE 500 provides a 3-lead ECG (an improvement from the 1-lead ECG provided by the Eko DUO). The stethoscope comes with a few alcohol wipes for use prior to skin contact, and the on-screen mobile ECG feed will begin automatically once the chest piece has detected an acceptable signal.

The available on-screen view of the features is also a big step up from the DUO where it felt often necessary to refer to your phone to figure out the listening filter mode or other functions if you forgot which features the onboard LEDs signaled.

The Eko mobile app has since undergone multiple user interface updates and is mostly easier to navigate without knowing what settings are available. Connecting the device to a smartphone via Bluetooth was a fast and painless process. But what’s more critical is the ability to visualize and analyze data in real-time, as well as the options to record, save data, and share data.

The app is powered with Eko’s AI-assisted detection software, which is available for free through the Eko app (or for Enterprise customers: the SENSORA AI-assisted detection software). The AI is used for cardiac disease detection (AFib, bradycardia, tachycardia) and provides a pretty quick turnaround after recording an exam (<1 minute) to tell the user whether murmurs or anomalies were detected in the ECG readings. There are tutorial screens with appropriate positions shown in the app for chest piece placement.

At the price point of $429 (including a free case and engraving), this might seem a bit steep for some, but it all comes down to whether you think these features would help you in your clinical practice.

Many clinicians swear by non-digital stethoscopes, but there are also many who carry around digital stethoscopes for their amplification and recording features. In some noisier environments, such as an ambulance, the digital amplification can really make a difference. And out in the field, we’ve also heard stories where the earpiece tubing can become cumbersome when needing to access patients in less optimal positions, and the wireless listening options are great. On that front, we’d also like to note a nice hardware design detail: the quarter-turn connection to lock the chest piece and earpiece together, instead of the pieces screwing together with multiple revolutions. This made it must quicker and easier to transition between using the chest piece alone or with the earpiece.

Similarly, devices like this can also help in telehealth capacities or even more remote situations where access to certain medical equipment is more challenging. This is where the 3-lead ECG features can serve as a useful quick temporary solution for triage (short of the full ECG examination in a formal clinical setting), and in a pinch, murmurs or anomalous sounds can be quickly recorded and shared with a healthcare provider or team.

Overall, the CORE 500 is a easy to use digital stethoscope with excellent sound and features that traditional stethoscopes simply can’t provide.

Product info page: Eko Health | CORE 500™ Digital Stethoscope

Flashbacks: Eko DUO Digital ECG + Stethoscope: Exclusive Interview and Review; Review: Eko Core Digital Stethoscope; Eko Releases New CORE Digital Stethoscope Offerings; Eko DUO Stethoscope with ECG Built-In Now Available for Purchase; Eko Core Stethoscope with Novel Digital Capabilities FDA Cleared