Your Apple Watch is already capable of tracking your fitness activity. With the Watch Link Pod, you can connect it to ANT+ exercise machines. It lets you use an Apple Watch to replace your chest heart rate monitor. The device can work with treadmills, rowers, and bike computers.
The Watch Link Pod also works with many bike computers, including the Garmin Edge series. It is compatible with Apple Watch Series 3 or later. It has an IP68 rated design.