3M Littmann Cardiology IV Stainless Steel Stethoscope

Last updated: June 1, 2023


With the highest acoustic rating, the 3M Littmann Cardiology IV Diagnostic Stethoscope is the best stethoscope for top-quality sound. This stethoscope's design helps you hear even the toughest-to-detect issues. As an added bonus, you'll get a no-chill rim on the chestpiece to keep your patient comfortable during detection.

We looked at the top Stethoscopes and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Stethoscope you should buy.

Product Details

Key Takeaway: Thanks to its ability to magnify even the tiniest sound, this 3M Littmann Cardiology IV Diagnostic Stethoscope is a clear winner.

In our analysis of 26 expert reviews, the 3M Littmann Cardiology IV Stainless Steel Stethoscope placed 11th when we looked at the top 18 products in the category. For the full ranking, see below.

From The Manufacturer

Built to hear more Sturdy and refined, the Littmann Cardiology IV helps isolate subtle sounds2 so you can hear changes in your patients in the most critical and challenging environments. Designed to help you listen for hard-to-hear sounds, including aortic stenosis, S3 gallop murmurs and faint pulmonary anomalies. Useful in critical care and challenging environments such as the ED, ICU, Cardiac ICU, step-down unit and other dynamic locations Hear subtle changes in patient status. Diagnose and make decisions with confidence. 2Better audibility of high-frequency sounds (adult side, firm pressure) compared to Cardiology III can help you learn more about your patient’s condition Education at your fingertips. Get exclusive training content on your mobile device that will help you improve your auscultation skills and use your stethoscope more effectively. The 3M Littmann Learning Institute App includes self-paced lessons with heart and lung sounds, patient scenarios to help improve your diagnostic thinking, self-tests to track your progress, a sound library, and more. Get the app and start training today!

Our Expert Consultant

Dr. Anis Rehman 
Endocrinologist and assistant professor of internal medicine

Dr. Anis Rehman is a board-certified endocrinologist who treats diabetes, obesity, thyroid diseases and osteoporosis, as well as general endocrine diseases. He also serves as an assistant professor of internal medicine at SIU School of Medicine.

Expert Reviews


What reviewers liked

The Cardiology IV is also one of the best, most accurate stethoscopes, and 3M Littman rates its acoustic performance at 9.
The stethoscope is built to hear better internal sounds or acoustics so you can easily hear body sounds such as murmurs and other pulmonary anomalies
Perfect sound sensibility offers the right performance that captures even the subtlest of sounds in hard-to-hear problems

What reviewers didn't like

More expensive.
The Cardiology IV tends to be an overkill for users that are not doing any physical assessment task
Hypersensitive diaphragms may produce too much interference if not used correctly
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