![Heart rate monitoring on my Forerunner 235 doesn't work on runs - Forerunner 230/235 - Sports & Fitness Archive - Garmin Forums Heart rate monitoring on my Forerunner 235 doesn't work on runs - Forerunner 230/235 - Sports & Fitness Archive - Garmin Forums](https://forums.garmin.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/125/IMG_5F00_2682.jpg)
Heart rate monitoring on my Forerunner 235 doesn't work on runs - Forerunner 230/235 - Sports & Fitness Archive - Garmin Forums
![Vintage Forerunner 235, charge lasts for days (5+years old) did my first marathon with it last year! Curious if Heart Rate Monitor is wrong though! : r/Garmin Vintage Forerunner 235, charge lasts for days (5+years old) did my first marathon with it last year! Curious if Heart Rate Monitor is wrong though! : r/Garmin](https://i.redd.it/pufi664kwmrb1.jpg)
Vintage Forerunner 235, charge lasts for days (5+years old) did my first marathon with it last year! Curious if Heart Rate Monitor is wrong though! : r/Garmin
![Garmin Forerunner 235, GPS Running Watch, Black/Gray Bundle with Garmin HRM-Dual Heart Rate Monitor | Gps running watch, Running watch, Workout accessories Garmin Forerunner 235, GPS Running Watch, Black/Gray Bundle with Garmin HRM-Dual Heart Rate Monitor | Gps running watch, Running watch, Workout accessories](https://i.pinimg.com/736x/eb/17/58/eb17580b1c0566d4d8a19b6f55caf574.jpg)