Garmin Forerunner 255 review: runner’s best friend gets GPS and multisport upgrade

Greater accuracy, longer battery and full support for triathlons makes the best running watch even better

Garmin's latest running watch has been upgraded in almost every way, bringing multisport tracking, more advanced GPS and a bunch of high-end features down to a more affordable price with the Forerunner 255.

The longstanding series is available in two sizes for the first time with the 255 - a small 41mm-wide case and a larger 46mm model, which means it should fit comfortably on a wider range of runners' wrists. But it has very big shoes to fill, replacing the well-regarded Forerunner 245 from 2019.