The best triathlon watches also track all three legs accurately and you can get seamless transitions, as well as great battery life ... We reckon the Garmin Forerunner 965 is the best overall ...

Garmin watches have astronomical battery life, often lasting weeks, depending on the series. The life expectancy of these watches usually keeps up to 80% charging capacity after a few years of use.

Garmin watches have astronomical battery life, often lasting weeks, depending on the series. The life expectancy of these watches usually keeps up to 80% charging capacity after a few years of use.

Nearly all Garmin watches launched in the past ten years offer GPS access, and using it alone effectively conserves battery life—though this comes with certain trade-offs, which we’ll examine ...