Connect Your Apple Watch to a Garmin Edge, Wahoo ELEMNT, or any other BLE Bike Computer | by Dominik Maglia | Medium
Amazon.com: Garmin Edge 1040 GPS Bike Computer Bundle, On and Off-Road, Spot-On Accuracy with Speed and Cadence Sensor, HRM-Dual Monitor and Wearable4U E-Bank Bundle : Electronics
Garmin Edge® 530 Cycling Computer + Sensor Bundle, Includes heart rate monitor with soft strap, speed sensor and cadence sensor - Seven Gear