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HeartMath Inner Balance Stress and Tension trainer - wired for iPhone

A pocket-sized heart rate variability coach that plugs into your iPhone for guided coherence sessions. The HeartMath Inner Balance tracks your HRV in real time while a paired app walks you through breathing exercises that support stress resilience and calm focus. A practical tool for daily on-the-go stress training.

$179.95

The Inner Balance Trainer analyzes and displays your heart rhythm while measuring Heart Rate Variability (HRV) β€” a window into the quality of communication between heart and brain. The wired ear sensor connects via Apple Lightning port and reads your pulse with a medical-grade photodetector at a 125 Hz sample rate, so the app can visualize coherence in real time and guide you toward a calmer, more resilient physiological state.

The Inner Balance wired sensor and app teach you how to shift from stress and frustration to balance and resilience using real-time feedback from your own heart rhythm.

  • Designed to help you feel calmer, more centered, and more focused
  • Supports HRV coherence training to help reduce the negative effects of stress, fatigue, sleep disruption, anxiety and burnout
  • 3-5 minute sessions a few times a day can make a meaningful difference
  • Backed by 25+ years of HeartMath HRV research and over 250 independent peer-reviewed studies
  • Compatibility: requires iOS 13.0 or later; works with iPhone 6s and newer, iPad 5th generation and newer
  • Connection: Apple Lightning port (wired)
  • Sensor: medical grade photodetector with 125 Hz sample rate; auto gain control
  • Sensor weight: 0.2 oz (5.67 g)
  • Cable length: 48 in (121.92 cm)
  • Packaging: 5.5" x 7" x 1.5" (139.7 x 177.8 x 38 mm), 5.1 oz (144.6 g)
  • Inner Balance wired (Lightning) ear sensor
  • Quick Start Guide
  • Inner Balance App (free download from the App Store)

What devices does it work with?

iPhone 6s or newer and iPad 5th generation or newer, running iOS 13.0 or later. It connects via the Apple Lightning port.

Is there a Bluetooth version?

Yes β€” a Bluetooth Inner Balance sensor is available as a separate product.

How long should I practice?

A few 3-5 minute sessions per day is enough to start building HRV coherence.

Do I need the app?

Yes β€” the Inner Balance app is required and is a free download from the App Store.

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  • 5 stars: 15 (88%)
  • 4 stars: 1 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (6%)
R
RamΓ‘ I.
RamΓ‘ I.

I get so much from being a part of this community. Ongoing support after training has been invaluable.

R
Ronna V.
Ronna V.

The HeartMath COP is supreme quality with magnificent content and wise beautiful souls.

S
Sophie
Sophie

I received a broken Inner Balance Lightning. It worked for one day and stopped working mid-session.

T
To R.
To R.

I've been meditating for years, but this helped me fine-tune my practice.

G
Greg S.
Greg S.

This easy-to-carry sensor is fantastic. I can lower my blood pressure in just 5 minutes.

A
Amy
Amy

A month into using the app and device, I can already see a difference in stress management.

V
Vivien V.
Vivien V.

A very helpful biofeedback unit for those of us that may tend to be Type A personalities.

M
Mr P.
Mr P.

This product is great! Being able to see when you're in the zone is invaluable.

D
Deb U.
Deb U.

I am a therapist and use biofeedback daily. This little item makes it easy to practice anywhere.

R
Ronna V.
Ronna V.

The HeartMath COP is supreme quality with magnificent content and wise beautiful souls.

A
Amy
Amy

A month into using the app and device, I can already see a difference in stress management.

M
Mr P.
Mr P.

This product is great! Being able to see when you're in the zone is invaluable.

G
Greg S.
Greg S.

This easy-to-carry sensor is fantastic. I can lower my blood pressure in just 5 minutes.

V
Vivien V.
Vivien V.

A very helpful biofeedback unit for those of us that may tend to be Type A personalities.

R
RamΓ‘ I.
RamΓ‘ I.

I get so much from being a part of this community. Ongoing support after training has been invaluable.

T
To R.
To R.

I've been meditating for years, but this helped me fine-tune my practice.

D
Deb U.
Deb U.

I am a therapist and use biofeedback daily. This little item makes it easy to practice anywhere.