Broadcast heart rate from your Samsung watch to Zwift
Amazon.com: TOZO S3 Smart Watch (Answer/Make Call) Bluetooth Fitness Tracker with Heart Rate, Blood Oxygen Monitor, Sleep Monitor IP68 Waterproof 1.83-inch HD Color for Men Women Compatible iPhone & Android : Electronics
Amazon.com: Samsung Galaxy Gear S2 Smartwatch SM-R730V 4G (Verizon) with Large Rubber Band - Renewed , Heart Rate Monitor(Dark Gray) : Cell Phones & Accessories
Gear S3 frontier 46mm smartwatch (Bluetooth), Dark Gray