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F4



For disappearing calories

For you who want to get a fitter body by knowing how many calories you have burned. The small and simple F4 gives you accurate information and motivates you to reach your targets.

  • See how many calories you have burned
  • Get interference-free data with coded heart rate transmission
  • Helps you keep the intensity you want
£68.02 / €99.90
Basic features
Computer connectivity
Cycling features
Data transfer
Language features
Polar exercise features
Recording features
Transmitter belt
Watch features
F4
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