Road Trail Run: Polar M430 GPS Heart Rate Watch and Polar Flow Review: Simple, Comfortable, Accurate with a Great Free Training Platform
![Polar M430, to repeat the success of the M400, but with optical pulse sensor - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS... Polar M430, to repeat the success of the M400, but with optical pulse sensor - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...](https://media.correrunamaraton.com/wp-content/uploads/2017/04/polar-m430.webp)
Polar M430, to repeat the success of the M400, but with optical pulse sensor - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...
![Trying to link polar flow to Strava, but for some reason it won't let me. As you can see, the option to turn it on is greyed out. Anyone know why, or Trying to link polar flow to Strava, but for some reason it won't let me. As you can see, the option to turn it on is greyed out. Anyone know why, or](https://i.redd.it/05da3tj9rum61.jpg)