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  • Garmin HRM-Tri/HRM-Swim Accessory Bundle
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GarminHRM-Tri/HRM-Swim Accessory Bundle

Item # GRM005D

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Item # GRM005D

Get data in and out of the pool.

For many triathletes, tracking biometric data on the run and bike training blocks is second nature, but the swim is measured only in distance covered and lap times. Now, you can get the most out of every second of training with the Garmin HRM-Tri/HRM-Swim Accessory Bundle. Designed especially for triathletes, this bundle provides all you need to track your training and race biometrics on land and in the water.

This bundle includes two heart rate monitor straps — the HRM-Swim and HRM-Tri. The HRM-Swim is best served for indoor pool training because it's a non-slip, chemical-resistant strap with a wider profile to handle forces from wall push-offs and turns. It runs on a standard CR2032 battery that's easily replaceable with a trip to the neighborhood grocery store. Its claimed battery life is 18 months when swimming an average of three hours a week.

The HRM-Tri is fashioned from a softer material and well-suited to tracking heart rate on land or during open water swims for training and races. It also runs on a standard CR2032 battery with a claimed battery life of 10 months at an average of one hour of training per day. Both straps store heart rate data and transmit it wirelessly to your Garmin Epix, Fenix 3, or Forerunner 920XT device.

Tech SpecsWeight
Tech Specs
Battery Type
Battery Life
[HRM-Swim] 18 months, [HRM-Tri] 10 months
Recommended Use
swimming, triathlon
Manufacturer Warranty
1 year

Claimed Weight

Claimed weights are provided by the vendor.

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[HRM-Swim] 72 g, [HRM-Tri] 59 g

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Unanswered Question

Is this compatible with the 735XT?

How small will these adjust? My ribcage circumference is 28 inches.

Hi Jason, These should adjust down to fit about a 20" torso. Please reach out to me directly if you have any other questions. - Matthew Pizza - Expert Gearhead