Polar - Runners! Stride sensor support for Polar M400 is here. We've also improved the GPS fix! Learn more

Polar M400 with heart rate sensor review - The Gadgeteer

Polar M400 GPS & Activity Tracker Watch In-Depth Review

Polar M400 GPS & Activity Tracker Watch In-Depth Review

Product Reviews Archives

Polar M400 Review

Buy Pyle Smart Foot POD Stride Sensor for iPhone 6, 6 Plus 5, 5S, 5C & 4S and Android Works MyRun, Wahoo Strava ala Coach Apps Bluetooth LE Sensor Online at desertcartBolivia

Stride Sensor Bluetooth® Smart

What are my options for a simple GPS running watch? - Quora

Polar M400

Polar M400 GPS Sports Watch with Heart Rate Sensor, Black