![Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET](https://www.cnet.com/a/img/resize/7aa3f56d7debd4147132a43c31af53d8a0397bb8/hub/2014/11/18/616b2599-c792-4105-b6c0-f449f8c3ab5f/polar-m400-product-photos-10.jpg?auto=webp&width=1200)
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
![Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3981.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker
Polar - Updates for Flow app Android, M400 and V800 users: - Flow app Android release corrects the activity and training data visibility issue which some of you experienced - firmware updates
![XDOU PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch New Li-Polymer Rechargeable Accumulator - AliExpress XDOU PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch New Li-Polymer Rechargeable Accumulator - AliExpress](https://ae01.alicdn.com/kf/Sa14a5bd18a414cbe86dd40eaa16373ddd/XDOU-PolarV650-PolarV800-Battery-For-Polar-V650-V800-M400-M430-M600-GPS-Sports-Watch-New-Li.jpg)
XDOU PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch New Li-Polymer Rechargeable Accumulator - AliExpress
![Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3977.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker
![DaDaXiong PolarM400 PolarM600 PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch Bateria - AliExpress DaDaXiong PolarM400 PolarM600 PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch Bateria - AliExpress](https://ae01.alicdn.com/kf/S83c34056c8464891a46932927bed6d1aw.jpg_640x640Q90.jpg_.webp)
DaDaXiong PolarM400 PolarM600 PolarV650 PolarV800 Battery For Polar V650 V800 M400 M430 M600 GPS Sports Watch Bateria - AliExpress
![Polar upgrades for V800, M400 and Flow - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS... Polar upgrades for V800, M400 and Flow - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...](https://media.correrunamaraton.com/wp-content/uploads/2015/04/actualizacion-polar-1.41.webp)
Polar upgrades for V800, M400 and Flow - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...
![Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3985.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker
![Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMGL18921.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800 /M400/A300 | DC Rainmaker
![Polarm400 Polarm600 Polarv650 Polarv800 Battery For Polar V650 V800 M400 M430 M600 Gps Sports Watch Bateria + Free Tools - Mobile Phone Batteries - AliExpress Polarm400 Polarm600 Polarv650 Polarv800 Battery For Polar V650 V800 M400 M430 M600 Gps Sports Watch Bateria + Free Tools - Mobile Phone Batteries - AliExpress](https://ae01.alicdn.com/kf/S95bbdaa2066345698e7487f797177545U/PolarM400-PolarM600-PolarV650-PolarV800-Battery-For-Polar-V650-V800-M400-M430-M600-GPS-Sports-Watch-Bateria.jpg)