Is there a material difference in HR fidelity from watch to chest strap? I run with the Garmin Forerunner 935 and have always been skeptic about my baseline HR i get. Will start using the chest strap next week.

Anecdotally, my wrist-based HR on the 935 has been lower the chest strap. It also fluctuates less. 

I’ve heard wrist based is less accurate for darker skin (like mine):

Anecdotally, my wrist-based HR on the 935 has been lower the chest strap. It also fluctuates less. 

I’ve heard wrist based is less accurate for darker skin (like mine): https://www.vchri.ca/participate-research/2024/02/12/wrist-worn-heart-rate-monitor-readings-are-less-accurate-people

Head of Engineering @ Bitwise | Arsenal fan, cyclist, poker enthusiast | @purple #143 🟪 

Wow, super useful. Thanks pal! Will try the chest strap for a couple of months and see if the difference is meaningful. Cheers!