Our quick take

Garmin Forerunner 255 - 4.5 / 5

Design and display

  • 41mm and 46mm size options Comes in music and non-music versions Removable straps Waterproof up to 5ATM

Sports and fitness tracking

  • Multi-band GPS support Triathlon and open water swimming modes Morning reports HRV status

Battery life

  • Up to 14 days in smartwatch mode Up to 16 hours in multi-band mode Up to 30 hours in GPS mode

To recap

The Garmin Forerunner 255 is a great running watch that’s now also a great option for triathlon lovers, as well. It’s grabbed some desirable features from Garmin’s pricier watches, and, whether you’re a beginner or more experienced runner, there’s plenty to like about the successor to the very popular Forerunner 245.