STRYD: Garmin 920XT, Suunto AMBIT 3 SPORT, Polar V800The world’s best triathlon watch? As we approach Christmas 2015 the triathlon gadget watch world has moved on. Many of the numerous bugs in the initial 920XT are ironed out. At the same time Polar’s V800 has continued to add new features making many old reviews out-of-date and the V800 is now, …