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This product is no longer available, but don't go just yet.


  • Enjoy Mio Continuous Technology with EKG-accurate heart rate data at even performance speeds with no uncomfortable chest strap
  • In extensive testing against top heart rate chest straps, Mio LINK consistently performed with 99% EKG accuracy, even while running and cycling at speeds of up to 14.4 MPH
  • LED lights and an electro-optical cell "sense" the volume of blood under the skin; sophisticated algorithms are applied to your pulse signal to detect your heart's true rhythm
  • 5 customizable heart rate zones; LED lights tell you which zone you're in, so you can stay on track with your training goals
  • Connect to your favorite fitness apps and sport devices with Bluetooth Smart (4.0) and ANT+ wireless
  • Soft silicone and a formfitting design make the lightweight Mio LINK comfortable to wear, even during the most rigorous workouts
  • The Mio LINK Heart Rate Monitor fits a wide range of wrist sizes; with no need for a chest strap, it is easy to put on and take off


    Fits wrists circumference:
  • S/M: 4.8 - 6.9 in.
  • L/XL: 5.9 - 8.2 in.

View all Mio Heart Rate Monitors

REI membership


Best Use Running, Cycling
Customization Apps
HRM Included/Integrated Yes
Heart Rate Sensor Type Wrist-based
Heart Rate Target Zone(s) Yes
Water-Resistant Depth 30 meters
Altimeter No
Battery Type Lithium Polymer
Average Battery Life 6-7 days with 1 hour of workout time per day
Data Exchange Bluetooth, ANT+
Gender Unisex

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We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

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