Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - DirectSync Cable, Durable Charge and Sync Cable for Polar M400 : Cell Phones & Accessories
Polar M400 Running Watch Bluetooth GPS Activity Tracking / BLACK | eBay
Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - DirectSync Cable, Durable Charge and Sync Cable for Polar M400 : Cell Phones & Accessories
USB cable for Polar RC3, A370, A360, M400 usb charging cord - 1m | eBay
Amazon.com: ReadyWired USB Charging Cable Cord for Polar A360, A370, M400, M450, V700 Fitness Tracker : Electronics
Polar M400 GPS Smart Sport Watch USB Cable Transfer Cord Replacement | eBay
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
For Polar M400, M450, A360, A370, V700 Sports Watch USB Data/Charger Cable - Walmart.com
New Fast Usb Charger Cable For Polar M430 Smart Watch 1m Quick Charge Cable Data Cord For Polar M430 Gps Advanced Running Watch - Smart Accessories - AliExpress