From 10 August 2026 to 6 September 2026, you can find the sharpest Polar smartwatch promotions at Coolblue during the Back to School deals. With a Polar smartwatch, you can keep track of all your workouts and gain extensive insight into your progress. You can find all your data on the watch and in the Polar Flow app on your smartphone. Polar smartwatches work with the Apple iPhone as well as Android smartphones. Check the size before you choose. In doubt about your size? Visit one of our stores.