Free US Shipping on $49+

60 Day Money–Back Guarantee

1 Year Technology Warranty

Inner Balance Bluetooth for Android & iPhone

An unparalleled window into your emotional wellbeing

The Inner Balance™ sensor and app teach you how to shift from stress and frustration to balance and resilience with real-time feedback, based on your own heart rhythm.

Bluetooth not for you? Click here.

The Inner Balance Trainer is based on years of scientific research and is designed to teach you how to shift your emotional state in the moment – so you feel better and think more clearly.

Sometimes, all we need is a little feedback to make positive changes within ourselves. Imagine if that feedback could come straight from your own heart. Well, now it can.

When we’re stressed, we feel poorly, and our brain function and creative thinking become impaired.

We might overlook or forget important details, overreact to small stuff, say things we regret, get overwhelmed, have trouble sleeping or feel exhausted and drained. But it doesn’t have to be this way!

With Inner Balance, you will learn how to restore emotional balance right in the moment you need it.

Learn how to synchronize your heart, mind, and body to reset your composure and inner clarity, calm reactive emotions, and neutralize stress. This creates an inner state called coherence.

Learn how to synchronize your heart, mind, and body to reset your composure and inner clarity, calm reactive emotions, and neutralize stress. This creates an inner state called coherence.

With practice, you’ll feel calmer, more centered and focused – and enjoy a ‘carryover effect’ into your next activity. You will access more intuitive discernment to make better decisions.

This self-empowering technology uses heart rhythm feedback to tell you when you’re on the right track. A quick and easy 3-5 minute session a few times a day is enough to make a meaningful difference.

Regular use has a ‘carryover effect’ that builds and sustains resilience, preventing and reducing stress and improving health and performance.

Reduce Stress

Improve Sleep

Restore Energy

Balance Emotions

Increase Focus

Tap Into Your Intuition

The Science Behind Inner Balance

The Inner Balance analyzes our heart rhythm, measured by Heart Rate Variability (HRV), which indicates how emotional states are affecting our nervous system. HRV offers a unique window into the quality of communication between the heart and brain, which directly impacts how we feel and perform.

Frustration

Frustration

Appreciation

Appreciation

Our heart rhythm patterns are the best reflection of our inner state. We can use the Inner Balance to see what’s going on inside of us and learn how to shift into a state of balance, self-reliance and renewing feelings, such as appreciation and compassion.

The Inner Balance trains us to self-generate a highly efficient physiological state called HRV coherence, which helps us increase emotional composure and clearer reasoning. Recommended by health professionals worldwide, a few minutes of daily coherence practice has been shown to reduce and prevent the negative effects of stress, such as overwhelm, fatigue and exhaustion, sleep disruption, anxiety and burnout.

Add to Cart

This quick tutorial shows you how to use the Inner Balance Trainer, connect to the App, and start your session.

Backed by 25 Years of Research

HeartMath has been a pioneer in Heart Rhythm (HRV) research and emotional self-regulation training for over 25 years. Over 400 independent peer-reviewed studies have been published on HeartMath technologies and methodologies.

Visit our Science of HeartMath page to learn more about how the Inner Balance technology can train you to self-generate a coherent state, which helps us increase emotional composure and clearer reasoning.

No matter where you are in your journey, the Inner Balance Trainer offers you the insight and awareness you need to jumpstart your transformation.

Shift your emotional state in the moment and watch the changes occur in real-time.

Best-in-Class HRV Coherence Sensor

The Inner Balance Trainer is optimized to ensure accurate HRV and Coherence measurement.

  • Medical grade photodetector
  • 125hz sample rate – measures your heart rate 125 times a second
  • Auto gain control capable of changing resolution of measurement in real time
  • State of the art, ultra-low Bluetooth working at an output power range of 0.5 mW or less, which is significantly lower than mobile phones
  • 80 hours of battery life, display of battery level in app and auto-shutoff
  • Ergonomic shape for easy placement with a low profile, lightweight design
  • USB charging cable included

See the Power and Intelligence of Your Heart

HRV Coherence Feedback

Real-time score guides your practice and help you increase coherence.

Guided Meditations

Reduce stress, upgrade meditation, better sleep and more.

Real-Time Coaching Tips

Encouraging on-screen prompts.

Advanced Options

Four challenge levels, customizable settings and screens.

Free Online Platform

Track progress over time, keep journal notes, earn awards, use the daily practice plan and additional use tips.

Product Specifications

Technical

Inner Balance Trainer Specs

Bluetooth Compatibility

Requires Bluetooth 4.0 or higher

Android
This product is designed for use with Android v5 and newer.

iOS
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.

Packaging

Box Size 5-1/2 x 7 x 1-1/2 inch (139.7 x 177.8 x 38 mm)
Weight 5.1 oz (144.6g)

Sensor Weight
Weight .9 oz

Sensor Specifications

Ear Clip Size
1-5/8 x 3/4 x 5/8 inch
(41.3 x 19 x 15.9 mm)

Cable Length
14 in (35.6cm)

Pod Size
2-5/8 x 1-1/4 inch

What’s included

Bluetooth ear sensor

USB Charging cable
Quick Start Guide

Inner Balance App (free on the App store or Google Play store)

Inner Balance Bluetooth uses BT4.0 (BLE–Bluetooth Low Energy) which works at an output power range of 0.5 milliwatts (mW) or less — this is significantly lower than mobile phones which typically have output levels between 250 mW and 2000 mW. The tiny Bluetooth emitter is in the module that attaches to your garment, not in the ear sensor. Inner Balance Bluetooth is compliant with applicable FCC tests.

If you’re an iPhone user that would prefer to use a wired lightning cable connector instead of the wireless Bluetooth version, you can check out our alternative iPhone Lightning cable Inner Balance™ Trainer here.

Frequently Asked Questions

©HeartMath Inc. 2026. All rights reserved. Content can be used by permission only.