![Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3218.jpg)
Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker
![Polar H10 Size XS-S - Heart rate sensor for cellular phone, GPS watch, activity tracker - black - for Polar A300, A360, Loop, Loop 2, Loop Crystal, M200, M400, M600, V800 - Walmart.com Polar H10 Size XS-S - Heart rate sensor for cellular phone, GPS watch, activity tracker - black - for Polar A300, A360, Loop, Loop 2, Loop Crystal, M200, M400, M600, V800 - Walmart.com](https://i5.walmartimages.com/seo/Polar-H10-Size-XS-S-Heart-rate-sensor-cellular-phone-GPS-watch-activity-tracker-black-A300-A360-Loop-Loop-2-Crystal-M200-M400-M600-V800_8dae0ac2-2291-4511-aa33-e0f553c8c7d9_1.2f39fd82cad028d581730b020ea6fadd.jpeg)
Polar H10 Size XS-S - Heart rate sensor for cellular phone, GPS watch, activity tracker - black - for Polar A300, A360, Loop, Loop 2, Loop Crystal, M200, M400, M600, V800 - Walmart.com
![Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3222.jpg)
Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker
![Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3209.jpg)
Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker
![Amazon.com : Polar A300 Fitness Tracker and Activity Monitor with Heart Rate (White) : Sports & Outdoors Amazon.com : Polar A300 Fitness Tracker and Activity Monitor with Heart Rate (White) : Sports & Outdoors](https://m.media-amazon.com/images/I/711xoMpLsLL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Polar A300 Fitness Tracker and Activity Monitor with Heart Rate (White) : Sports & Outdoors
![Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker Polar Announces A300 Activity Tracker Watch, also MyFitnessPal automatic sync support | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3208.jpg)