I am still looking for a chest strap to go with my Fenix 5s for accurate measurement, what is the difference of this one to the ?.

[Garmin HRM-TRI (Black, Blue)](https://www.digitec.ch/de/s1/product/garmin-hrm-tri-black-blue-sportuhr-smartwatch-zubehoer-5618227)

Which one is recommended ?

Question

I am still looking for a chest strap to go with my Fenix 5s for accurate measurement, what is the difference of this one to the ?.

[Garmin HRM-TRI (Black, Blue)](https://www.digitec.ch/de/s1/product/garmin-hrm-tri-black-blue-sportuhr-smartwatch-zubehoer-5618227)

Which one is recommended ?

Accepted Answer

The HRM-TRI chest strap has additional functions:
- Accelerometer to capture stride rate, ground contact time and vertical movement of the torso.
- HRM-Tri stores heart rate data when under water and sends it to the device after surfacing

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Question about Garmin Premium heart rate chest strap

I am still looking for a chest strap to go with my Fenix 5s for accurate measurement, what is the difference of this one to the ?. Garmin HRM-TRI (Black, Blue) Which one is recommended ?