AVALON: Another large real-world study comparing ambulatory cardiac monitoring services

Click here to see the study

The Monitoring Service That Changed The Game

The Zio® service is an ambulatory cardiac monitoring solution with highly accurate data, designed with patients in mind.1,2

A Few Easy Steps

The Zio Service


View instructional information about the Zio service below.

Applying your Zio monitor

Wearing your Zio monitor

Removing & returning your Zio monitor

MyZio app screenshot

Log Symptoms on Your Phone

The MyZio mobile app allows you to easily log symptoms, receive helpful reminders, and get answers to common questions directly on your phone.

Download the app today on iOS or Android.

A photo showing the front cover of the Zio AT Instructions for Use manual.
Download instructional information about the
Zio service below.
Answers to common questions.

Contact Us

We're Here for You

For questions about applying, wearing, removing & returning a Zio monitor, etc.

 Call us 24/7 at 1‑(888)‑693‑2401

Or submit a request through our contact us page.


If at any time you feel the need for immediate medical care, please call 911.

The Zio monitor will not provide any medical assistance and cannot contact medical personnel for you.

1. Data on file. iRhythm Technologies, 2023

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