Receive extensive insights and tips for your workouts and health with the Apple Watch Series 11. You can also measure your sleep accurately and you can see if you have an irregular heart rate thanks to the ECG heart rate sensor. On the Always On display, you can always see the time and notifications. Choose from the Apple Watch Series 11 42mm or 46mm and check in the store which size suits you best. Measure your wrist and choose the right watch strap. You can buy the Apple Watch Series 11 at Coolblue with Cellular. This way, you're always available even when you don't have your iPhone with you. You do need an eSIM phone plan for this.