POLAR VANTAGE M –Advanced Running & Multisport Watch with GPS and Wrist-based Heart Rate (Lightweight Design & Latest Technology), White, Small | FitnessGearUSA.Com
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
Polar A370 Fitness Tracker with 24/7 Wrist Based Heart Rate, GPS via phone (90064905) + Bluetooth Digital Body Mass Bathroom Scale + Fusion Bluetooth Headphones Black/Red + 1 Year Extended Warranty - Walmart.com
Polar's latest wearable is a GPS watch and activity tracker all in one | Engadget
Heart Rate Monitors, activity trackers and bike computers | Polar USA
Road Trail Run: Polar M430 GPS Heart Rate Watch and Polar Flow Review: Simple, Comfortable, Accurate with a Great Free Training Platform