Garmin Forerunner 910XT multi-sport watch revealed

The very best triathlon GPS watch on land, on wheels and even in water, from Garmin

Garmin has been in the GPS game since before most people knew what a satellite was, working with airlines and the military. As a result, it’s been able to shrink a smorgasbord of sensors into a slim-line watch with a 20-hour battery – the Forerunner 910XT will happily keep going when even the strongest triatheletes and multi-sport enthusiasts have run out of stamina.

The great thing about the Forerunner 910XT is its ability to work in open water, counting strokes, measuring distance and even recognising your stroke type.

Switch to cycling and one touch of the watch will change sport mode, while an optional quick release lets you attach it to a bike mount for easier viewing.It measures everything from speed, altitude and barometrics to – using ANT+ sensors – cadence (pedal revolutions), your heart rate, and even your power output in watts.

While running you get all the usual data like pace, speed, and distance on a big display that you can personalise so you can easily check your key stats through the fog of pain.

On all these modes you can set the watch to vibrate with alerts, including a pace warning to keep you from flagging.

You can upload your data to Garmin Connect for analysis and even social network and email sharing, so you can show off how good you are at exercising. Fellow athletes can share their stats with you, enabling you to test yourself against their times.

Here’s an informative video of someone enjoying the kind of ideal conditions we can only dream of in the UK, where the 910XT will be on sale mid-November for around £350.