Skimo Co
SkyRun

COROS Heart Rate Monitor

$79.00

In Stock & Ships Today

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Heart rate monitors that use traditional chest straps can cause discomfort, while wrist-based readings may be inaccurate and slow. The COROS Heart Rate Monitor fits comfortably and snugly on the upper arm, and the advanced sensor boasts 5 LED lights with four photodetectors, providing accuracy equivalent to its chest-based cousins. With a 38-hour active battery life, the COROS HR Monitor will last through the wildest of single pushes, and the 80-day stand-by mode will ensure it's ready for your next adventure at the drop of a hat. The stretchy armband is comfortable for all-day use, and weighing under 20 grams, you'll hardly notice it's there during your next training run or race.

  • The armband will accommodate 18-32cm of powerful biceps.
  • Charging time is less than two hours, and the magnetic connection is user-friendly.
  • The advanced sensor provides real-time heart rate data.
  • Bluetooth connectivity for both COROS and non-COROS devices
  • 3 ATS of water resistance will last through the hardest of downpours.

Specifications
Charging Time 2 Hours
Weight
convert to ounces
19g
Battery Life Active - 38 Hours
Standby - 80 Days
Waterproof Rating 3 ATS
Specs Verified No
Design
Connection Bluetooth
Strap Material Polyester fiber, nylon, spandex
SkyRun Says
Usage HR monitoring in a convenient place

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Questions & Reviews

7/9/2025
Ivey S (used product regularly)
 
I've really enjoyed this heart rate monitor! I linked it to my Garmin Enduro watch easily and I feel like the data is more accurate than the wrist HR monitor in my watch. It's comfortable to wear and the battery life is great! The longest run I've taken it on so far was a little over 13hr.
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2/11/2024
Question from Paul Calabro
 
Probably a dumb question but…
Thoughts on this vs a traditional chest strap, as far as accuracy?

I recently switched to Coros from Garmin, and it’s tempting to try this instead of a chest strap, but I’m skeptical of how accurate an optical HR monitor will be. Seems like bicep is a better location than wrist, but during activity my wrist-only HR reading is accurate maybe… 10% of the time?

Penny for your thoughts.
2/12/2024
Answer from Jeremy L
 
Hi Paul. Not a dumb question, as chest straps have been far more accurate than wrist-based monitors for years. I find the Coros optical HR to have more accuracy than any of my watches. It might be a tad slower than my chest strap, but it's close enough that I have made it my go-to for workouts. For an unbiased take, check out this article.
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Model: Heart Rate Monitor

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