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Only included in M400 with heart rate sensor sets. If you bought a set that does not include a heart rate
sensor, not to worry, you can always buy one later.
USB CABLE
Use the USB cable to charge the battery, and to sync data between your M400 and the Polar Flow web ser-
vice via FlowSync software.
POLAR FLOW APP
View your training data at a glance after every session. Flow app syncs your training data wirelessly to the
Polar Flow web service. Download it from the App Store or Google Play.
POLAR FLOWSYNC SOFTWARE
Flowsync software allows you to sync data between your M400 and the Flow web service on your computer
via the USB cable. Go to flow.polar.com/start to download and install Polar FlowSync software.
POLAR FLOW WEB SERVICE
Plan and analyze every detail of your training, customize your device and learn more about your performance
at polar.com/flow.