The HRM-Swim Heart Rate Monitor and Strap provides heart rate metrics to high-end Garmin Fenix and Forerunner watches

Take your training to the next level by pairing HRM-Swim with your compatible Garmin device. The sleek, non-slip strap stays in place, even during wall push-offs. Once out of water, real-time heart rate, interval summaries and stored heart rate are transmitted to your compatible device.


Swim-Ready - Specifically designed for swimmers.

Secure - Non-slip strap.

Data - Stores and forwards heart rate data to compatible devices.

Water Resistance - Water rating of 5 ATM, withstands pressures equivalent to a depth of 50 metres.

Water Usage - Rain, snow, splashing, accidental submersion, showering, surface swimming, and shallow snorkelling.

Examples of Typical Uses

Pool swims.

Open water swims.

Triathlon competition (pool swim), triathlon kit not required.

Runs or bike rides as part of a multi-sport activity that includes a pool swim.

Compatible Devices

Compatible to a wide range of Garmin devices, including:

Fenix 3, 3 HR, 3 Sapphire and Chronos.

Forerunner 735XT and 920XT.


Unit dimensions (LxWxD): 23.0”-57.0” x 1.5” x 0.5” or 58.0 - 145.0 x 3.8 x 1.2cm.

Weight: 2.5oz or 72g.

Module size: 29.4 x 51.4 x 8.5mm.

Module weight: 1.8oz or 51g.

Size adjustment: Bi-fold.

Sizing range: 23.0”-57.0” or 58.0 - 145.0cm.

Battery: CR2032.

Battery life: 18 months (swimming 3 hours per week).

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: no.

Stores and forwards heart rate: yes.

Swim interval heart rate statistics: yes.

Non-slip design for pool swimming: yes.

Pool chemical resistant: yes.

What's in the Box?


Small, Medium and Large Strap Extenders.



Garmin HRM-Swim instructions.

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