Hint

• Attach the adjustment band as needed. Refer to the “Startup Guide” for details on how to attach it.

Note

• When starting a training plan, attach the supplied adjustment covers for Heart rate sensor. If you do not attach the adjustment covers, your heart rate may not be measured properly. At the time of purchase, size M are attached. Change the size as needed.
• Do not use strong force to deform or bend the neckband. If you bend the neckband at the same part repeatedly, it may break. If it breaks, a wire-like metal may project from the covering, and you could injure yourself. If the neckband breaks, stop using the device.