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.
Polar M400 Review
Polar M400 GPS Sports Watch with Heart Rate Sensor, Black
Polar M400 Review
kwmobile Watch Strap Compatible with Polar M400 / M430 - TPU Silicone Fitness Tracker Replacement Band Sports Wristband w/Clasp : Cell Phones & Accessories
User manual Polar M400 HR (English - 96 pages)
Polar M400/M430 protection case neon orange >> Horlogeband.com
Polar M430 M400 Smart Watch, M430 Polar Watch Strap Soft
Polar M400 Watch Battery Replacement - iFixit Repair Guide
Polar M400 GPS Running Watch with Heart Rate Monitor Blue
Virtually indestructible Polar FT7 Screen Protector. Same film used by the military to protect aircraft surfaces. Protects from scratches dirt wear & tear. Works with Polar FT7 cases.
RinoGear: Polar M400 Screen Protector - 6-Pack
M400 product support
Screen Protector For Polar M400 M430 Premium PET Screen Protectors for Polar M430&M400 Sports Smart Watch Easy to Install - AliExpress
Set up your Polar M400 and Polar Flow App on Vimeo