The BODY BIKE indoor cycling app utilizes two protocols: cycling power (0x1818) and heart rate (0x180D).
Cycling Power 0x1818: This protocol enables the communication between the SMART+ bike and the BODY BIKE indoor cycling app.
Heart Rate 0x180D: This protocol facilitates the connection between the heart rate monitor and the BODY BIKE indoor cycling app.
If a heart rate monitor does not transmit using the correct protocol (0x180D), it cannot be connected to the BODY BIKE indoor cycling app. Therefore, Apple Watches and other smartwatches, such as Garmin and Samsung watches, cannot directly connect to the app and cannot be used as heart rate monitors.
We recommend using a chest strap heart rate monitor or a wrist sensor to the app. Chest strap monitors provide more accurate and reliable heart rate data compared to wrist-based sensors.