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SmartwatchRadar

Best Triathlon Watches

Watches with a multisport or triathlon mode that switches from swim to bike to run in one activity.

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125 smartwatches

What a triathlon watch needs

A triathlon watch records swim, bike and run as one activity, with transitions, and switches sport at the press of a button. Look for open-water swim tracking, enough GPS battery for your race distance, and support for bike sensors such as power meters.

For long-course racing, check the battery in the GPS mode you’ll actually race in, not the headline smartwatch figure.

Frequently asked questions

Can a triathlon watch track open-water swims?

Most here can, using GPS between strokes. Pool swims are counted by laps instead. Check the swim row to see which each watch supports.

Will a triathlon watch connect to my bike power meter?

Most pair with ANT+ or Bluetooth power meters, speed and cadence sensors. The external sensors row lists what each watch supports.

What does a multisport mode do?

It records swim, bike and run as one activity and times the transitions separately. One button press moves you to the next leg.