Shows when you’re improving fitness based on your heart rate

Displays calories burned

Comes with comfortable fabric transmitter and coded heart rate transmission to avoid cross-talk

Suitable for swimming



  • FT4
  • FT4
  • FT4
  • FT4
  • FT4


  • Body measurement features
    • Manual target zone – bpm / %

      Manual target zone – bpm / %

      This feature enables you to define the target zone as you want and is suitable for your training. You can set the target zone for your training as beats per minute (bpm), as a percentage of your maximum heart rate, or as a percentage of your heart rate reserve (HRR%).

    • HRmax (user set)
    • Polar OwnCode® (5kHz) – coded transmission

      Polar OwnCode® (5kHz) – coded transmission

      Coded heart rate transmission automatically locks in a code to transmit your heart rate to the training computer. The training computer picks up your heart rate from your transmitter only. Coding prevents interference from other training computers.

    • Polar OwnCal ® - Smart calories

      Polar OwnCal ® - Smart calories

      The most accurate calorie counter on the market calculates the number of calories burned. Calculation is based on your individual data: your weight, height, age, gender and the intensity of physical activity. Smart Calories are available in heart rate monitors and activity trackers.

    • HR-based target zones with visual and audible alarm

      HR-based target zones with visual and audible alarm

      You can define your target zones for a training session based on heart rate to help define the right intensity. When you are out of the preset zones, the training computer will give a visual and audible alarm.

    • Average and maximum heart rate of training
    • Automatic age-based target zone – bpm / %

      Automatic age-based target zone – bpm / %

      To help you train safely and effectively, the training computer determines your heart rate target zone limits automatically according to your age-based maximum heart rate (220 minus age). The limits are determined either in beats per minute (bpm), as a percentage (%) of your maximum heart rate, or as a heart rate reserve (% HRR). See also Maximal oxygen uptake (VO2max) and Manual target zone.

    • Heart rate – bpm / %

      Heart rate – bpm / %

      Heart rate is the measurement of the work your heart does. Heart rate can be expressed as the number of beats per minute (bpm) or as a percentage (%) of your maximum heart rate.

  • Training features
    • HeartTouch – button-free operation of wrist unit

      HeartTouch – button-free operation of wrist unit

      When HeartTouch is on, different training information during training can be accessed without pressing buttons, for instance, when gloves make pressing buttons difficult, by bringing your training computer close to your transmitter.

    • Graphical target zone indicator

      Graphical target zone indicator

      This feature points out graphically on the display the zone you are in during a training session helping you to stay on the desired intensity zone.

    • ZonePointer
  • Recording features
    • Totals


      Totals includes your training data starting from the last reset enabling you to follow your long-term training.

    • Training files (with summaries) – 10
  • Watch features
    • Backlight
    • Date and weekday indicator
    • Display text in English, German, Finnish, Swedish, French, Portuguese, Spanish, and Italian
    • Dual time zone
    • Button lock

      Button lock

      By activating button lock, training computer buttons are locked, and accidental presses do not cause problems, for instance, during training.

    • Low battery indicator
    • Time of day (12/24h) with alarm and snooze
    • User replaceable battery
    • Water resistant – 30m

In the box


FT4 is rated 3.4194 out of 5 by 31.
Rated 4 out of 5 by from Accurate watch I love the watch it's been great I've had it since 2013 and yes it almost every day the battery did die about 2 years in and it sat for about 6 months before changing it ever since I did change the battery the watch malfunctions it turns on and off the screen gets a weird I'm always having to set it its a pain especially when it does it during a workout and I lose all my info
Date published: 2016-05-20
Rated 1 out of 5 by from Like others have written this is my second FT 4. Happy with the first one. The second has been problems after the first year or so. Changed batteries a couple of time. I hand wash it in the sink after every use and occasionally wash it in the machine tied up in a sock. The display jumps around. This the most consistent thing about it. I use it in town and out in the mountains when mountain biking. Don't think it is outside interference. Best place to use with gym equipment. Last one for me. as a matter of fact I am looking for something that serves my purpose. That works.
Date published: 2016-05-19
Rated 1 out of 5 by from my wristband was broken where I can find my wristband watch Polar FT4 Color bronze
Date published: 2016-05-11
Rated 5 out of 5 by from Still Using After 5 years! I am still in love with my Polar FT4 after 5 years! I've changed the batteries in the watch and the heart rate monitor strap about twice in this time period and it is still working great and looks like new! I use it during every workout, which is basically every day because I'm an athlete, and I definitely prefer it over my other daily activity monitor because it has the more accurate HR reading due to the chest strap! I also just love wearing the watch around because it is so cute and durable. Thank you Polar for such a great product!
Date published: 2016-04-28
Rated 2 out of 5 by from Only good for 2 years, at best I received this a couple of years ago as a gift and it worked with only a few hiccups the first 1.5 years. Since then, it has been one problem after another. First, the buttons stopped working. After a few days, they started working again, except one (top right), and the action of each button changed. I could still manage to get my workout done until a few months ago when my heart rate randomly stopped registering for minutes at a time until it wouldn't register at all. I replaced the battery and now it only registers very intermittenly so I no longer have an accurate calorie count. Not happy at all, especially since I stayed with Polar over another brand.
Date published: 2016-04-25
Rated 2 out of 5 by from Used to Love it but now not so much I bought this item a couple of years ago. For the first 2 years it worked like a charm, then it started malfunctioning. It wouldn't continually keep track of my heart rate. So I replaced the batteries in the watch and chest piece. Worked for a couple of days then started malfunctioning again. So I bought a new chest strap only worked for a day before it started malfunctioning again. Not really sure what to think now. Not very happy with this product now and irritated.
Date published: 2016-04-01
Rated 2 out of 5 by from Used to Love it but now having problems I bought my FT4 about 6 months ago. It worked great for about 3 months and then started giving false readings or no reading at all. thought it was the batteries so I changed them out. Worked great for about 2 months and then started to have the same problems. I use this daily, and the last 3 days I haven't been able to use :( ... I have now purchased new batteries again and am waiting for them to come in mail. If I change them this time and it continues I will probably throw this away and buy from another Brand.
Date published: 2016-03-10
Rated 2 out of 5 by from Used to love it When I first got my polar ft4 in March I loved it. It was comfortable and worked like a dream. Then in less than a month the strap battery ran out. I sent it in to be replaced and once I finally got it back it worked fine. Now I have a hard time getting it to continue tracking my heart rate. If I'm running it will work but if I bend over at all it will say check heart rate transmitter, which gets to be pretty annoying.
Date published: 2015-08-25
  • 2016-05-29T07:30CST
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