Forerunner® 255, GPS Running Smartwatch, Advanced Insights, Long-Lasting Battery, Slate Gray

Featuring a slim design and an always-on, full-color display that is lightweight on the wrist and simple to read even under bright sunlight available in 46 mm and 41 mm sizes. It offers up to 14 days of operation in smartwatch mode and up to 30 hours in GPS mode for a comprehensive view of your wellness, from rest to exercise. Morning report consolidates your sleep, HRV status and daily workout recommendation in one location right when you wake up (This device is designed to provide an estimate of your activity and metrics). Prepare for your upcoming race with training advice, personalized daily suggested workouts and finish time forecasts based on route information, weather and performance. See your whole week of daily suggested workouts, which adjust following each run to align with your performance and recovery. HRV status monitors your heart rate variability during sleep, offering you deeper understanding of your overall health, recovery and training performance (This device is designed to provide an estimate of your activity and metrics). Access complimentary adaptive training plans from Coach for a 5K, 10K and half-marathon, or design your own custom workouts in the Connect smartphone app