Garmin HRM4-Run

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Garmin HRM4-Run

HRM-Run heart rate monitor provides the most advanced running metrics to high end Garmin GPS watches. 

  • Forerunner® 735XT
  • Forerunner® 630
  • Forerunner® 920XT
  • fenix 3
  • epix

The small, lightweight module fits entirely within the width of the seamlessly comfortable, easily adjustable non-slip strap, while providing advanced heart rate and physiological features such as:

  • VO2 max
  • Lactate threshold
  • Recovery time estimates
  • Stress score
  • Performance condition
  • Predicted race times

As well as 6 running dynamics measurements:

  • Cadence
  • Vertical oscillation
  • Ground contact time
  • Vertical ratio
  • Stride length
  • Left/right ground contact time balance

This real-time data can help athletes take their performance to the next level. 

Video Help Guide: How to replace the battery in your Garmin Heart Rate Monitor (HRM)

ANT Firstbeat


In the Box

  • HRM-Run
  • Strap Extender
  • Manual

Physical Specifications

  • Unit dimensions (LxWxD): 23.5”-56.0” x 1.2” x 0.5” (60.0 - 142.0 x 3.0 x 1.2 cm)
  • Weight: 2.1 oz (59 g)
  • Module size: 29.4 x 51.4 x 8.5 mm
  • Module weight: 1.7 oz (49 g)
  • Size adjustment: Bi-fold
  • Sizing range: 23.5”-56.0” (60.0 - 142.0 cm)
  • Battery: CR2032
  • Battery life: Up to 1 year (approx. 1 hour per day)
  • Water rating: 5 ATM


  • ANT+® heart rate: yes
  • Supports heart rate variability and advanced heart rate features: yes
  • 2.4 GHz ANT wireless communication protocol: yes
  • Running dynamics: yes
  • Stores and forwards heart rate: no
  • Swim interval heart rate statistics: no
  • Non-slip design for pool swimming: no
  • Pool chemical resistant: no
SKU 010-10997-12
Barcode # 753759149772
Brand Garmin
Shipping Weight 0.1200kg
Shipping Width 0.080m
Shipping Height 0.060m
Shipping Length 0.170m
Shipping Cubic 0.000816m3

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*Ships same day if ordered before 2pm Brisbane time, unless otherwise stated

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