Heart Rate Monitor Length Adjustment and Sizing Guide

Garmin offers multiple heart rate monitor (HRM) options for those wanting to receive heart rate data through a chest strap. Straps can be adjusted for a better fit and Garmin offers an optional strap extender to lengthen the strap even further.

How Do I Adjust the Length of an HRM Strap?

Depending on which strap you have you will have the ability to adjust the length of the strap by sliding the adjuster back and forth. 

For the HRM 200, HRM 600, HRM-Pro, HRM- Pro Plus, HRM-Run (2nd generation), HRM-Swim, or HRM-Tri sliding the strap adjuster towards the end will lengthen the strap while sliding it away from the end will shorten it. 

 For HRM-Dual moving the inside adjuster closer to the end will lengthen the strap while sliding it away from the end will shorten it. 

Heart Rate Monitor Minimum and Maximum Length Specifications

The below Measurements come from the smallest possible size available by adjusting the strap size, while the largest possible size is obtained by stretching the elastic or using an optional strap extender.

• HRM 200 and HRM 600 (XS-S)

  • Minimum length: 560 mm/ 22 in.

  • Maximum length: 720 mm/ 28 in.

• HRM 200 and HRM 600 (M-XL)

  • Minimum length: 720 mm/ 28 in.

  • Maximum length: 1060 mm/ 42 in.

• HRM-Pro™

  • Minimum length: 596.9 mm/ 23.5 in.

  • Maximum length: 1422.4 mm/ 56.0 in.

• HRM-Pro Plus™

  • Minimum length: 596.9 mm/ 23.5 in.

  • Maximum length: 1422.4 mm/ 56.0 in.

• HRM-Swim™

  • Minimum length: 584.2 mm/ 23.0 in.

  • Maximum length: 1447.8 mm/ 57.0 in

Discontinued Straps

• Heart Rate Monitor with Elastic Strap (Small)

  • Minimum length: 614 mm / 24.17 in.

  • Maximum length: 1330 mm / 52.36 in.

• Heart Rate Monitor with Elastic Strap (Standard)

  • Minimum length: 634 mm / 24.96 in.

  • Maximum length: 1730 mm / 68.11 in.

• HRM-Run™ (2nd Gen)

  • Minimum length: 596.9 mm/ 23.5 in.

  • Maximum length: 1422.4 mm/ 56.0 in.

• HRM-Dual™

  • Minimum length: 635 mm/ 25.0 in.

  • Maximum length: 1320.8 mm/ 52.0 in.

• HRM-Tri™

  • Minimum length: 596.9 mm/ 23.5 in.

  • Maximum length: 1422.4 mm/ 56.0 in.

• Premium Heart Rate Monitor: HRM2-SS

  • Minimum length: 640 mm / 25.2 in.

  • Maximum length: 1440 mm / 56.7 in.

• Premium Heart Rate Monitor: HRM3-SS and HRM-RUN™ (1st Gen)

  • Minimum length: 640 mm / 25.2 in.

  • Maximum length: 1440 mm / 56.7 in.