Improve fitness !

• For those who want basic heart rate-based features to keep their fitness training simple.
• Just grab it with you, put on the comfortable textile transmitter, and Polar FT4 tells if you’re improving your fitness.
• Shows when you’re improving fitness based on your heart rate
• Displays calories burned
• Comes with comfortable textile transmitter and coded heart rate transmission to avoid cross-talk.

For further technical info, click here

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