Polar Pacer Pro S-L Smartwatch 45mm

This is an ultra-light, new-generation sports watch with integrated barometer that equips athletes with advanced tools to improve running economy, training sessions, and sports performance.
This is a serious sports watch that equips athletes with seriously powerful training tools.
You love running, but you like to do other things too: pick any sport in Polar Flow and get customized views, tracking, and metrics for it on your watch.
Know if you’re training too much, too little or just right: improve your performance, prevent injury.
We took the algorithm that omits motion from the equation and made it better, then we made the sensor smaller and removed the famous Polar bumps. Why? Well, we discovered the “Goldilocks Zone” for heart rate measurement – not too big, nor too small, it’s just right.
Normally, you would have to go to a laboratory, stick a mask on, and run on a treadmill until you’re exhausted just to get your VO2max value - not any more.
The new antenna design allows you to track every stride with improved accuracy wherever you run.