Garmin Forerunner 910XT
Standout: The most functions in an easy-to-use package, with the longest battery life.
Weakness: No casual “watch” function.
Our favorite for a variety of reasons—flawless S/B/R tracking, for starters—but virtual turn-by-turn navigation makes the 910XT stand alone. It allows users to download a “course” online, and the watch will tell you where to turn with impressive accuracy. Swim stroke length data is another unique feature. Early testing of firmware updates showed that Garmin successfully corrected any glitches.
Rock it: For the most intuitive, user-friendly way to track triathlon.