Forerunner® 255 Slate Gray Sporting Goods/Climbing YKK® zipper hardware

YKK® zipper hardware

OUR LATEST TECH

Get estimated heart rate4  data along with alerts if your heart rate stays too high or too low  while you’re at rest

The Air Director™ back panel and ventilated harness keep you cool and comfortable

Forerunner® 255 Slate Gray Sporting Goods/Climbing YKK® zipper hardwareRUN AT A HIGHER LEVEL Youre making strides. Now, lets take the next step. Get the training and recovery insights youll need to notch your best time yet. Get an overview of your sleep, HRV status and daily workout with morning report. Charge less, train more with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode. Push your limits with a built in triathlon feature and 30+ activity profiles. Plan your strategy with daily