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Home > Suunto > T4

Suunto T4 Heart Rate Monitor

Suunto T4 Heart Rate Monitor

The Suunto T4 heart rate monitor is an intermediate heart rate monitor. Compared to the T3, it introduces a feature called the Suunto Coach, which allows you to plan your next workout. It comes in various colors, so the image you see on the right is not the only one available for sale.

Important Note: There are more recent revisions of the Suunto T4 heart rate monitor. The Suunto T4c comes with the new comfort heart rate belt whereas the Suunto T4d comes with the new dual heart rate belt instead. This means that the T4d dual chest belt can provide either interference free heart rate monitoring, or if required, interface with cardio gym equipment via analogue transmission. So if you are buying new, it is probably better to choose Suunto T4d to take advantage of these new enhancements.

The main features of the Suunto T4 heart rate monitor are:

  • Continuous heart rate monitoring
  • You can set heart rate training limits
  • You can also set up 3 heart rate training zones. The default is zone 1 (60 to 70% Max HR), zone 2 (70 to 80% Max HR) and zone 3 (80 to 90% Max HR).
  • You can set a tone to beep when you train above/below your limits or when you cross the boundary of your training zones
  • Heart rate can be set and displayed as BPM (beats per minute) or % of Max HR (percentage of maximum heart rate)
  • Your heart rate is shown numerically and also in a speedometer-like display on the rim of the watch
  • Real Time Training Effect monitors your training performance
  • Suunto Coach
  • You can view real time calories burnt
  • You can view real time average heart rate
  • Stop watch to start and stop exercise session
  • You can take up to 99 laps, of which the first 50 is stored in memory
  • Two segment Interval timer with warm up timer
  • Post-exercise summary: Training Effect, duration, calories burnt, average heart rate, maximum heart rate, time spent in and out of zones and limits, summary of each stored lap
  • You can save the summary of 15 exercise sessions
  • You can examine total values for this week, last week and previous 6 months: number of workouts, training time, calories burnt etc
  • Basic time keeping: Time (2 time zones), date, alarm
  • Backlight
  • Both chest strap and wrist watch batteries are user replaceable
  • Water resistant up to 30m
  • Digital wireless chest strap for interference free transmission
  • Choice of colors
  • Optional PODs (not included in standard package) to give the Suunto T4 heart rate monitor other capabilities: GPS POD, Bike POD, Foot POD and PC POD.

Note that the features in bold above show the features found in Suunto T4 but not in Suunto T3.

This takes you to Amazon for some of the best selections for this model. Certain selections come with FREE Super Saver Shipping.

Training Effect: This feature is quite unique. Using your personal fitness profile, the Suunto T4 heart rate monitor analyzes your heart rate performance and displays that on a Training Effect scale between 1 to 5. It tells you bascially how much your current work out has improved your aerobic condition. If you want to maintain your aerobic fitness, train until your TE measures 2.0 to 2.9. If you want to improve it but not at too quick a pace, train until it measures 3.0 to 3.9 and so on. You can also (if you wish) pre-set your training target before your workout. Overall the Training Effect feature is great for many people who want some guidance on whether they have trained enough to achieve their aims.

Suunto Coach: This feature analyses your current and past performance and produces a personal 5-day training plan. It makes recommendations for your workout: exercise frequency, duration and intensity (via target Training Effect). It also schedules rest days for you. You can follow the recommendations or decide on your own training details. If you do something different from suggested, Suunto Coach automatically re-adjust the plan for your next 5 days so that your plan is always updated, taking into account your actual training.

Optional PODs: There are 3 types of PODs (Peripheral Observation Devices) for speed and distance measurements: GPS POD, Bike POD and Foot POD. If you use one of them, you can set your speed limits and also review your speed and distance information real time and also in summary. In addition a number of other facilities such as Autolap etc become available.

PC POD enables data download directly from your chest belt to the PC, allowing real time monitoring of your heart rate on the PC screen. The T4 wrist watch unit can also connect to the PC via the PC POD. The PC POD comes with a special monitoring software.


The Suunto T4 heart rate monitor takes the T3 one step further by bringing in a planning tool, the Suunto Coach, to your heart rate monitor training. It retains all the other main features of the T3, for example, Training Effect, digital transmission, 15 session memory, interval timer and POD compatibility.

This takes you to Amazon for some of the best selections for this model. Certain selections come with FREE Super Saver Shipping.

Useful Information
Reviews: This page has a concise summary of Suunto heart rate monitor reviews.
Further information: Visit Suunto's official web site.

Not sure which heart rate monitor is right for you? Take a look at the Which Heart Rate Monitor page.

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