Polar M400

For urban and trail runners who want sporty design with advanced GPS and training features, along with loads of options to keep an eye on their activity.

Best Buy: Polar M400 GPS Watch with Heart Rate Black 90051339

Polar M400 Watch Battery Replacement - iFixit Repair Guide

Polar M400 GPS Running Watches

Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET

Polar M400 Review: Fitness/Sleep Tracker Watch With GPS

Polar M400 review

Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET

Polar M400 User Manual

Tempered Glass Protective Case Cover Tempered Glass Screen Protector - 3 1 M400 - Aliexpress