The Suunto T6D: A Great Heart Rate Monitor

Which Heart Rate Monitor Best Suits Your Needs

I owned a Suunto T6D Heart Rate Monitor for over 3 years and can honestly say the SUUNTO was the best sports cardio watch for fitness training I have ever used.

I have had various heart rate monitors from Polar,  Timex, and Garmin, and this was as good as any other watch I have owned. It has benefits and qualities that others have failed with.

Update: I now have a Garmin Fenix 5, as my Suunto was getting on the older side of things.

This is also turning out to be a superb watch with a great battery life of well over 2 weeks before it needs plugging in again.

This has now been superseded by the Garmin Fenix 6, and the SUUNTO by the SUUNTO Core.

Qualities of the Suunto T6D

For a start, the Suunto has a great feel to it. The strap is a thick, robust plastic with a good feel to it, which does not snag on the hairs on your wrist.

It is designed so that the adjustment is part of the strap and will easily fit almost any wrist.

However, my Suunto is now quite an old watch. If you are looking for the best Suunto watch currently on the market in 2023, I would look at the Suunto core.

The Suunto Core Outdoor Sports Watch

This watch is a very popular watch for many good reasons. It is a watch that will not cost you the earth and is full of everything you need to get your sports activities on the road.

It looks and feels good; the quality and build are second to none. Waterproof and usable in the swimming pool if you desire.

I had to change the battery twice in mine and would say it lasts between 12 and 18 months, depending on how often you use the watch. It is simple to open the back, remove the battery, and replace it with a standard 2025 battery.

This will cost around ÂŁ2, unlike the Polar watches that need to go back to Polar to change the battery, followed by a bill for around ÂŁ35. The strap also has a very easy clip-off back to change the battery.

One option is to buy the “Cycling Pack”. This comes with the following items: a T6D watch, Cadence POD, Roadbike POD, and the excellent Dual Comfort Belt.

The belt is the best I have used and worn, and is easy to fit and remove. NOTE: These are likely no longer available as this watch is now 10 years or older.

Also included is a data cable that links the watch to the computer so that you can log your sport onto the Suunto Movescount Website.

The T6D is very easy to use, and most settings are straightforward. The only settings that may require a little research are the TE (Training Effect) and the EPOC settings.

Suunto 9, GPS Sports Watch with Long Battery Life 

  • Waterproof multisport GPS with long battery life
  • Over 80 built-in sports modes
  • Up to 120 hours of battery life, charge reminders, and regular software updates
  • Accurate GPS tracking real-time navigation display
  • 24/7 activity tracking with instant heart rate, calorie, and step counter
  • Plan your routes and see activity-specific heatmaps
  • Connect to sports services like Strava, Endomondo, and Training Peaks
  • Stay connected with phone calls and notifications on your watch

A Great Alternative For many

Garmin Forerunner 35

The Garmin Forerunner 35 has a vast following of people who chose this watch for many things, including its ability to do many things for different sports, including running and tracking your heart rate with GPS.

Features of the Suunto T6

With five buttons on the outer edge, it is designed with sports in mind. Suunto is renowned as one of the best on the market, and in my opinion, this is THE best watch out there for sports people who train indoors and outdoors.

  • Real-Time Heart Rate
  • Excellent Quality Dual Comfort Belt
  • Easy to Change the Battery Yourself
  • No water ingress even after the battery has been changed
  • Normal 2025 battery
  • Extras include a Suunto foot pod for runners and a bike pod for the road or mountain bike

Indoor and Outdoor Fitness Training

Most watches used as a cardiovascular aid show you a heart reading—knowing if this is a correct reading and one that does read the heart is only accomplished when you test the watch or read reviews like this that tell you how it works.

I have a Garmin 705 Heart Rate Monitor fitted to each bike during training. It is a great tool for a lot of things, but the heart rate belt does not give you an accurate heart rate result when showing your calories consumed. (Read More Here).

The Suunto reads the heart rate and correctly shows the number of calories burned for the heart rate monitor. This is a great way of seeing how many calories you burn daily; the readings are spot on.

How do I know this? I have 2 monitors on my bike and have been training for a long time. I also train indoors on cross machines and know what a reading should be like when flat out.

The Suunto T6D works exactly how a Heart Rate Monitor should work: it calculates your calories burned against your heart rate. This is very important if you want an accurate reading of your burning calories.

A lot of heart rate monitors calculate calories burned against the speed at which you are traveling at, which is wrong. The Garmin 705 heart rate monitor is a prime example of this. As great as it is for everything else, this is it’s the biggest downfall.

It does not stop it from being my main heart rate monitor purely because I compete with Strava.com and the Garmin links to it perfectly. It is not as good at recording true calories burned as the Suunto.

Suunto Ambit2 R GPS And HRM Training Watch

  • Waterproof multisport GPS watch for athletes with a long battery
  • Over 80 built-in sports modes
  • Up to 120 hours of battery life
  • Accurate GPS tracking with real-time navigation
  • 24/7 activity tracking with instant heart rate
  • Plan your routes and see activity-specific heatmaps
  • Connect to sports services like Strava, Endomondo, and Training Peaks
Suunto Ambit2 R GPS And HRM Training Watch - One - White

The Garmin vĂ­voactive 4S Alternative

  • Easily download songs
  • Record all the ways to move with more than 20 preloaded GPS and indoor sports apps
  • Get easy-to-follow, animated workouts right on your watch screen
  • Battery life: up to 7 days
  • Personalize your watch with thousands of free watch faces
  • Garmin Pay contactless payment solution
  • Safety and tracking features include incident detection
  • Stay connected with smart notifications
  • Garmin Coach provides free 5K, 10K, and half-marathon training plans

Outdoor Fitness Training

With the Suunto, when traveling along on your bike at say, 20mph on the flat and relatively easy, your heart rate will be nice and steady, and you will be burning calories steadily.

Should you suddenly hit a climb, your heart rate will rise, your calories will be burned faster, and your bike speed will drop accordingly.

On other monitors, your heart rate will rise, but your calories will drop. This is because they are monitoring your speed and not your heart rate.

My Garmin Edge 705  is a prime example of this. When flying down a mountain at, say, 50 mph, my Garmin burns an alarming rate of calories in that time, twice as many as my Suunto.

Yet my heart rate might only be 90 bpm. It is completely the wrong way around. The Suunto T6D shines as it gets this right from the start.

Indoor Fitness Training

This is a very important point if you are looking for a watch for indoor fitness training. The Suunto T6D is the perfect watch for indoor and outdoor fitness training.

It monitors your heart as you train and gives back your calories burned and all the necessary heart rate information.

This is excellent if you use an indoor cycle trainer, a cross-machine or a rowing machine, as it will give you perfect results every time. Once you have completed your workout, you can move your details to movescount.com.

This is an online sports community where you can view detailed facts about your latest workout and share them with other like-minded people through social media like Facebook and X or upload the stats to your own website.

The website is an excellent source of information and very well laid out. There are various downloads and training guides for you to look at. These are available as a PDF download if required. This is great if you have a decent iPhone or an iPad, as you can view them in your own time.

Garmin Fenix 6 Sapphire

  • Fit for performance with a rugged, sophisticated design that features an always-on 1.3” (18% larger than previous fÄ“nix models) sunlight-readable display with bezels in stainless steel, titanium or diamond-like carbon (DLC) coating
  • Enhanced estimated wrist heart rate and Pulse Ox to support advanced sleep monitoring and altitude acclimation at high elevations (this is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition)
  • Advanced training features include PacePro for grade-adjusted pace guidance throughout your activity plus environmentally adjusted VO2 max and training status estimates

SUUNTO Core All Black Military Men’s Outdoor Sports Watch

Considered essential equipment for backcountry endeavors, the Suunto Core multifunction watch provides the data you need. Combining an altimeter, barometer, and compass with weather information, Suunto Core Classic is essential for your adventures.

  • An altimeter tracks your vertical movement
  • A barometer tells the Trend in air pressure
  • A compass points the way
  • Suunto Core tracks both the weather and the sun for you
  • With stylish designs in more than a handful of variations
  • Wristtop computer watch with altimeter, barometer, compass, and weather indicator
  • The altimeter displays current elevation, shows ascent or descent and records the session
  • Intelligent storm alarm senses drops in air pressure and notifies you of approaching storms
  • A barometer helps you predict changing conditions
SUUNTO Core All Black Military Men's Outdoor Sports Watch - SS014279010

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