A beautiful functional watch with sufficient functions also for racing sports. Takes heart rate from the wrist much better than any other brand so far.
Verified buyerRiitta V.


The Forerunner 645 is filled with exercise features, with emphasis on running. As it tracks your heart rate 24 hours a day, it stays in touch with your recovery and stress levels, making it easy to exercise when the time is right. The 645 also has several other sport profiles, including cycling, pool swimming, rowing, crosstrainer exercise etc.
If you realize you need a snack on the go, you can utilize the contactless payment function – pay with the watch (requires compatible credit card).