All models The OneTrack app for Apple Watch handles heart rate broadcasting automatically. There’s no extra broadcast mode to enable — simply make sure the app is installed on your watch. 1. Download the OneTrack Club app from the App Store on your iPhone. 2. The companion Watch app should install automatically to your Apple Watch. If it doesn’t, open the Watch app on your iPhone, scroll to OneTrack and tap Install. 3. Open the OneTrack app on your Apple Watch before joining a live session. 4. Your heart rate will be streamed directly to your coach during the workout. Tip: Make sure the watch is snug on your wrist (not too loose) and the sensor area on the back of the watch is clean. If you experience dropouts, try wearing the watch slightly higher up your forearm.

All watches with HR sensor mode (Vantage, Pacer, Ignite, Grit X series & more) Polar watches can act as a standalone heart rate sensor using their built-in HR sensor mode. The exact menu path may vary slightly by model, but the general steps are the same. 1. From the watch face, press and hold OK (or press BACK) to enter the main menu, then select Start training. 2. Browse to your preferred sport profile. 3. In the pre-training screen, open the quick menu (tap the quick menu icon on touchscreen models, or press the LIGHT button on button models). 4. Select Share HR with other devices, then choose Use watch as heart rate sensor. 5. On your phone, open the OneTrack app and navigate to the Bluetooth pairing screen. Select your Polar watch from the list of available devices. 6. Accept the pairing request on your watch. You should now see your heart rate on both devices. Note: While in HR sensor mode, your Polar watch acts purely as a heart rate strap. To also record the session on your watch, return to the pre-training screen and start a training recording separately. Manual: Polar HR Sensor Mode manual(https://support.polar.com/e_manuals/vantage-v2/polar-vantage-v2-user-manual-english/hr-sensor-mode.htm)

Forerunner 55, Fenix 6, Forerunner 970 & all other models Garmin offers heart rate broadcast in two ways depending on your model. Some watches broadcast continuously from settings, while older models broadcast only during an activity. Find your model below. Forerunner 55 (Broadcast During Activity) 1. From the watch face, press START and select an activity (e.g. Run). 2. Open the activity settings. 3. Select Broadcast Heart Rate and enable it. 4. Begin the activity — your heart rate will now broadcast via ANT+ to paired devices. Manual: Forerunner 55 manual(https://www8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/GUID-57A88A77-3813-4E79-9DB1-FC95B06F01BA.html) Fenix 6 (Broadcast During Activity) 1. From the heart rate widget, hold MENU. 2. Select Heart Rate Options → Broadcast During Activity. 3. Start an activity — your heart rate will broadcast for the duration of the session. Manual: Fenix 6 manual(https://www8.garmin.com/manuals/webhelp/fenix6-6ssport/EN-US/GUID-D8D363C2-0690-48D4-95E2-A3557E7D53C2.html) Forerunner 970 (Always-On Broadcast) 1. Hold the settings button and go to Watch Settings → Health & Wellness → Wrist Heart Rate → Broadcast Heart Rate. 2. Alternatively, hold LIGHT to open the controls menu and select the broadcast icon. 3. Your watch will begin broadcasting. Pair it with the OneTrack app on your phone. 4. Press STOP when you want to end the broadcast. Manual: Forerunner 970 manual(https://www8.garmin.com/manuals/webhelp/GUID-025D75CF-3445-49E1-8D81-1AA74AB4E00F/EN-US/GUID-D8D363C2-0690-48D4-95E2-A3557E7D53C2.html) All Other Garmin Models The menu path varies by model, but the feature is typically found under Settings → Sensors & Accessories → Wrist Heart Rate → Broadcast Heart Rate, or within Health & Wellness → Wrist Heart Rate. On newer watches, you can also add a broadcast shortcut to the controls menu (hold LIGHT). 1. Visit the Garmin Manuals page: https://www8.garmin.com/manuals(https://www8.garmin.com/manuals) 2. Type your model name in the search bar and click on your Owner’s Manual. 3. Use the search icon (top right) and search for “broadcast heart rate”. 4. Follow the steps listed for your specific model. Good to know: Most Garmin watches broadcast via ANT+, but many newer models (2019 onwards) also support Bluetooth broadcast. Broadcasting does use a little more battery than normal, so make sure your watch is well charged before a session.

All models (PACE, APEX, VERTIX, KIPRUN series) 1. From the main watch face, press and hold the BACK/LAP button to open the Toolbox menu. 2. Scroll to Broadcast HR and select it. 3. On your phone, open the OneTrack app and look for your COROS watch in the Bluetooth pairing list. 4. Select the watch to connect. Your heart rate should now appear in the app. Important: Due to Bluetooth limitations, only one Bluetooth connection is allowed during HR broadcast. You may need to disconnect your watch from the COROS phone app first. Either disable Bluetooth on your phone temporarily, or remove the watch from the COROS app via the Profile page, then disconnect it from your phone’s Bluetooth settings. Manual: COROS Broadcast HR guide(https://support.coros.com/hc/en-us/articles/360040256991-Broadcasting-Heart-Rate)