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5 Best Garmin Watch for Triathlon: Track Your Run, Swim and Cycling

Best Garmin for Triathlon

Garmin is one of the most successful brands in the sporting world. With a wide collection of best Garmin Watch for triathlon, triathletes can manage with a single watch for all their three major sports: biking, running and swimming.

This write up provides you with top five 5 triathlete watches offered by Garmin, starting from the one with most features.  The alluring features will give you exactly what you were looking for in your sporting watch.

5 Best Garmin Watch for Triathlon

With the following reviews, we have highlighted the Five Best Garmin Watch for Triathlon available on Amazon. Besides, core factors to consider when purchasing Watch for Triathlon are meant to help you get the best and most reliable Watch for Triathlon of your desire.

Let’s do quick review if you’re in a hurry and you can also find the deep review for every Garmin smartwatch by scrolling down.

  1. Garmin Forerunner 945 – Running/Triathlon Smartwatch with Music [Top pick]
  2. Garmin vívoactive 3 – GPS Smartwatch For a triathlon
  3. Garmin Forerunner 935 – Running/Triathlon Watch with Wrist-based Heart Rate
  4. Garmin Forerunner 735 XT – Black-Grey GPS (Extra: you need the Tri HR strap)
  5. Garmin Forerunner 45S – Running, Cycling, Strength Training, Training, Triathlon

1. Garmin Forerunner 945 – Running/Triathlon Smartwatch with Music


  • Lens material: Corning Gorilla Glass DX
  • Display size: 1.2 inches
  • Display resolution: 240 x 240 pixels
  • Weight: 1.3 pounds
  • Battery life: 2 weeks in smartwatch mode, 60 hours in UltraTrac mode 10 hours in GPS mode

A GPS tracker is present for safety. Smart notifications for calls and texts, the watch also uploads your real time data to Garmin connect and Live Track capability. VO2 max, for changes in heat, altitude acclimation status, load focus, recovery time and training effects, aerobic and anaerobic.

Running Track, hence measures cadence, stride length, balance, ground contact time and vertical oscillation and ratio. Training through customizing your own, or downloading Garmin Coach, a free app. It is the one of the best Garmin Watch for Triathlon.

Reasons to Buy
  • Garmin Pay Contactless payment solution, thus convenient as you don’t have to carry cash during your workout.
  • Several monitoring, tracking and measurement features for all your workout output.
  • Training Availability: you can customize your own, or download Garmin Coach, which is a free app
  • GPS tracker, which provides for safety.
  • Long battery life, which is, up to 2 weeks in smartwatch mode, 60 hours in UltraTrac mode 10 hours in GPS mode

Reasons to Avoid
  • Very expensive, especially in comparison to the rest.

2. Garmin vívoactive 3 – GPS Smartwatch For a triathlon


  • Lens material: chemically strengthened glass
  • Display size: 1.2 inches (30.4 mm)
  • Display resolution: 240 x 240 pixels
  • Weight: 43 grams
  • Battery life: 13 hours GPS mode, 7 days in smartwatch mode

Fifteen PS tracking apps, thus safety. Also, records pace and distance. Indoor sports apps are also present. VO2 max, fitness made estimates, heart rate monitor from the wrist makes important metrics easier.

Free watch appearance, apps and widgets the available Connect IQ store. Smart Features, allow you to upload sporting information to Garmin Connect and Live Track, get call, text and planning notifications. Its dimensions are 43.4 x 43.4 x 11.7 mm.

Reasons to Buy
  • Records laps during swimming, pace, distance and contact with the ground during running, and cadence during cycling, thus a great choice for triathlon.
  • The VO2 max, fitness made estimates and heart rate monitor allows you to see you see your performance simply from the wrist.
  • It has a GPS tracker, which tracks your location, hence ensuring safety.
  • It allows for live performance data upload into Garmin Connect and Live Track, giving you an opportunity to connect to the triathlon community and compete
  • Garmin Pay Contactless payment solution from which you can buy items and services, saving you from having to carry cash around.
Reasons to Avoid
  • Garmin Pay Contactless payment solution is only viable with a few banks, thus may not be suitable for everyone.

3. Garmin Forerunner 935 – Running/Triathlon Watch with Wrist-based Heart Rate


  • Lens material: glass
  • Display size: 1.2 inches (30.4 mm)
  • Display resolution: 240 x 240 pixels
  • Weight: 49 grams
  • Battery life: 24 hours GPS mode, 50 hours in ultra trac mode and 2 weeks in watch mode

This watch allows for elevation difference tracking, having a built-in barometer, altimeter and electronic compass, which is meant to ensure you are on track. It evaluates your training status, hence letting you know the performance level.

It further has features that measure ground contact time balance and stride length during running. It provides for in-built activity change, which you press differently for each activity: triathlon, cycling, running or swimming among others.

Reasons to Buy
  • It is not only comfortable and light enough to wear throughout the day, but also provides for features that allow you to change activities at will. It is hence your all-day watch.
  • It provides for GPS tracking, hence a safety precaution that sends alerts to selected contacts when an emergency arises.
  • It takes into consideration all the crucial triathlon metrics: cadence, stride length, duration of ground contact, balance, vertical oscillation and ratio.
  • Reviews recent history of performance and also shows the performance indicators, keeping you on toes.

Reasons to Avoid
  • Risk of getting the Asia Pacific model, whose specifications are of less quality than the ones stated above.

4. Garmin Forerunner 735 XT – Black-Grey GPS (Extra: you need the Tri HR strap)


  • Lens material: chemically strengthened glass
  • Display size: 1.23 inches (31.1 mm)
  • Display resolution: 215 x 180 pixels
  • Weight: 40.2 g
  • Battery life: 24 hours in ultratrac mode, 14 hours in GPS mode, 11 days in clock mode

This watch measures the pulse at the wrist using Strava score technology, hence estimating the heart rate. It does this all day, whether you are asleep or on your workout. It offers other monitoring features such as peak VO2, and metrics monitor.

It has a GPS tracker that provides for your safety. It automatically uploads all your performance data into the Gamin Coach app downloaded in your phone, allowing you to connect to other Garmin users.

Reasons to Buy
  • It has a GPS tracker, which any triathlete would want to enhance safety, and also keep on track throughout the exercise.
  • It estimates heart rate using the wrist pulse at all times, regardless of you activity.
  • It is lightweight and comfortable for use the whole day, with a battery life that allows for this.
  • It is waterproof, hence comfortable for sweaty cycling and running, and also swimming.

Reasons to Avoid
  • It does not translate the swimming metrics.

5. Garmin Forerunner 45S – Running, Cycling, Strength Training, Training, Triathlon


  • Lens material: Chemically strengthened glass
  • Display size: 1.04″ (26.3 mm)
  • Display resolution: 208 x 208 pixels
  • Weight: 1.12 ounces
  • Battery life: 14 hours in GPS mode, 7 days in smartwatch mode

This is a GPS watch, hence ensuring you don’t get lost from the track, while measuring your pace, distance and intervals. It has tracking features that notify your preferred contacts whenever you are in an emergency situation. Free Garmin Coach training plans, which help you in all your sporting activities.

It allows for smart calls and texts notifications, in addition to uploading your performance information to Garmin Connect community. You can control your music from the watch also.

Reasons to Buy
  • Sports apps available, including cycling, running and indoor activities that boost your workout.
  • Garmin Coach is meant to ensure you get personalized training from experts in the specific fields.
  • It has safety tracking features, which ensure that you will be safe even if a situation arises along the way.
  • Its smart feature ensures you don’t slow to check your phone, since everything you need is provided on your wrist.

Reasons to Avoid
  • The phone has to be connected to the internet for some apps to work, which may be a challenge in remote area workouts.

What to Consider When Buying Best Garmin Watch for Triathlon


The quality of a watch is gauged by the features it offers, not to mention the materials used in making it.


You have to consider the durability of the watch, so that it at least gives you maximum service before you replace it.

Compatibility with all your exercises:

A triathlete should ensure that the watch is compatible with running, swimming and cycling apps, and even triathlon as an exercise. This will ensure that you use a single watch for all your exercises.

Connected apps:

Connected apps, such as Garmin connect, allow you to get extra training. Other sports apps that allow you to connect to other Garmin users help motivate your performance.

Monitoring apps:

Apps that help you monitor your wrist pulse rate, performance metrics such as cadence, and GPS tracking app allow you to get more services from a single accessory.

Tracking apps:

Safety always comes first in our everyday life. There are great Garmin watches that will provide you with this feature, and send urgent notifications to selected contacts in your phone whenever you run into emergency cases.


Do the Garmin watches come with a charger?

Yes, the do. All the Garmin watches come with their respective chargers., so you don’t have to make an extra purchase.

Are the Garmin watches touchscreen?

If you are buying a triathlon watch, then a button one, like most best Garmin watches provide. Its difficult to slide or do anything on a touch gadget with wet and sweaty hands.

Can I play music through the apps on the watches?

Yes, you can. You only need to connect your phone to the watch, and then easily control the tracks from the latter. There are those that allow for music storage, such as Garmin Vívoactive 3.

Final Word

All of the best Garmin watch for triathlon will provide you with features favorable for swimming, running and cycling. They are definitely water resistant, and their material ensures you are safe from its harm when wearing it.

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