4.7 out of 5 stars
HRM-Tri is the smallest and lightest heart rate monitor from Garmin. Designed with rounded edges and no exposed seams, the strap remains comfortable during extended hours of training.
- Stores up to 20 hours of heart rate data during swims
- Provides feedback on running form by measuring cadence, vertical oscillation and ground contact time when paired with a compatible device
- Battery last for up to 10 months