Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - Micro USB Keychain Charger, Key Ring Micro USB Cable for Polar M400 - Jet Black : Electronics
POLAR M400 | konektor USB, POLAR M400 | POLAR Servis
M2EC 1M for polar M430 Charging Data Cable Applicable To M400 Charger - AliExpress
Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - DirectSync Cable, Durable Charge and Sync Cable for Polar M400 : Cell Phones & Accessories
Amazon.com: PlatinumPower USB Cable Cord for Polar A360, M400, V700 Sports Watch : Electronics
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
USB Charging Cable M400 Charger Compatible with Polar M400, M450, A360, A370, V700 Sports Watch USB Charger Cord GPS Accessories - Newegg.com
Polar M400 User Manual | Caring for Your M400
Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - Micro USB Keychain Charger, Key Ring Micro USB Cable for Polar M400 - Jet Black : Electronics
Polar M400 Fitness Tracker Heart Rate USB Cable Transfer Cord Replacement | eBay
Amazon.com: BoxWave Cable Compatible with Polar M400 (Cable by BoxWave) - Micro USB Keychain Charger, Key Ring Micro USB Cable for Polar M400 - Jet Black : Electronics