what means OHR

[vinc14]

Hello
sometime reading about OHR what means OHR, HR would be Heart Rate. But nothing found in the manual about O HR.
thanks for a feedback
vinc

[v.sacre]

@vinc14 Optical. Heart rate based on the optical sensors present at the back of the watch.
Google would have answer that as well I guess.

[Todd Danielczyk]

@vinc14 the O stands for optical: Optical heart rate. This differs from resistance which uses contact points like some strap heart rate monitors.

That’s the flashing green LED on the watch would be the OHR

[vinc14]

@v-sacre @Todd-Danielczyk
thanks a lot for your feedback!