best triathlon watches
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Triathlon multisport watches: 7 of the best reviewed

Triathlon training watches analyse everything you’ve ever wanted and more. But which balances multisport usefulness and value? James Witts reviews 7 of the best multisport GPS watches

Believe the claims and the right multisport watch will have Alistair Brownlee and Lucy Charles chasing your shadow. The hyperbole is a turn-off for committed sceptics but wade through the marketing and, though they might not win you an Olympic gold, they’ll certainly have you training smarter and racing faster.

Just be aware of the pitfalls. Many a triathlete has been lured into purchase by a long and ‘scientifically-proven’ features list only to realise a month later that 99% of its capability simply isn’t required. If you’ve never used a heart rate monitor and are training for 3-4hrs a week, for example, will your triathlon performance benefit from spending upwards of £300 on a multisport watch that monitors your aerobic capacity, run cadence and cycling fatigue rating?

Multisport watches: 5 key functions to look for when buying


Also, remember that some of the metrics offered – ground contact time, for instance – are useful but arguably maximised by the intervention of a coach. Then again, if you’re aiming for podium finishes, digging deep will be worth it. You’ll refine your training, resulting in greater gains for the same effort.

But beyond our test, do your own research to confirm the efficacy of many ‘performance-changing’ features that are on multisport watches. Take sleep tracking, which is primarily monitored by the user’s movement. The gold standard requires measuring brainwaves and eye movement, which even a top-end Garmin or Suunto can’t do. Instead, watches or bands combine an accelerometer and an algorithm to estimate the quality and quantity of your sleep. Recent Chinese research highlights just how inaccurate this method is.

Coros Pace


Upon release in 2018, Coros’ Pace led the way when it came to upping historically poor battery lives of multisport watches, coming in at around 25hrs with GPS on and 30 days in regular tracking mode. The rest followed but, in an industry dominated by the few, it gained them a foothold. 

The Pace is more than simply longevity, though, offering feedback for numerous endurance sports, including tri. In each, pick-up and retention of GPS is swift, though its open-water readings are a little awry. Accelerometers and sensors calculate stride length and cadence, which is a useful feature for working on run technique. The inclusion of a barometer is also a neat touch for accurate climbing information, as is the algorithm that records your running motion.

Using a chest strap for reference, the wrist-based HR sensor is accurate enough on gentle jogs and bike commutes, but high-intensity sessions see either a lag or erroneous fluctuations. This isn’t solely a Coros criticism, but it’s noticeable. 

Syncing between watch and phone is swift, and the info on the app is nicely presented. Parameters like time in zones and lap pacing are useful, but its third-party uploading capability is limited compared to the dominant brands: Garmin, Polar and Suunto. And it’s breaking the oligopoly of those three that’s Coros’ huge challenge. With the Pace, they’re at least in with making a dent. 

Verdict: A fine effort from Coros, especially the battery life. Find it £50 cheaper and it could be a winner 80%

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Sigma Sport ID.Tri


Sigma often create products that are packed with reliable functions, but lack an aesthetic sophistication. Often, they’re not hugely usable, either. So chapeau to the Germans for banishing those demons, starting with screen clarity. It’s easy to view on the fly, heightened by neat icons for switching between sport modes and reminding you to drink, eat and even what to eat. HR emanates from Valencell, one of the more accurate, and GPS isn’t bad either. Yet it often takes a few goes at picking up the satellite and, if it times out, you’ll need to press the relevant button to reattempt. And that’s fiddly as the buttons are awkward, especially wearing gloves. The Sigma app is cumbersome, though you can upload your workout to Strava. It also includes crash alert and sleep analysis.

Verdict: A Few quibbles but an impressive list of features for the price tag 81%

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Polar Vantage V 


The V here came with HR sensor. Without it, you save £40. But that sensor is worth the extra spend as you can tap into Recovery Pro, a neat self-assessment of training readiness based on HR data. The more you use it, the more accurate it is. This next-gen multisport watch comes with power without the need for a separate sensor. The importance of wattage in cycling is clear – in running, less so. But it certainly futureproofs things, which is appreciated at the price. Training Load Pro measures muscular, cardiovascular and perceived load to deliver a training audit. Battery life’s immense at 40hrs; you can tap into 130 sports including tri; wrist-based HR is better than most; and the touchscreen is impressive. A fine training tool, yet marks are lost for a lack of run dynamics.

Verdict: Arguably Polar’s best multisport watch to date thanks to the next gen tools 85%

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Continue reading our guide to the best triathlon training watches 2/2


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Are you saying the 735 is better than the 920 ?


What is the best value for money triathlon multi sport watch out on the market


Have had a Timex Ironman classic for over 10 years on the same battery and it's still going strong - I keep expecting the battery to die but, so far, so good. If all you want is a rugged watch that tells the time, has an alarm, a stopwatch and an interval timer (useful for IM - I set mine to beep every 15 mins to remind me to eat/drink on the bike) then this is fine. Yes, I also have a Forerunner 310XT for the clever stuff, but I wear the Timex every day.

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