Compatible with dozens of leading fitness apps, including Polar Beat

Compatible with iPhone 4S and later, and with selected Android devices including Samsung Galaxy S3 and S4 using Android 4.3 or later. Check all compatible devices

Transfers heart rate information while swimming with products which support 5kHz transmission



  • H7 heart rate sensor
  • H7 heart rate sensor
  • H7 heart rate sensor


H7 heart rate sensor is rated 3.757085020242915 out of 5 by 247.
Rated 5 out of 5 by from Excellent product Have been using this product for a number of years
Date published: 2016-07-20
Rated 5 out of 5 by from Works exactly as expected Works well & I received it in a very timely manner
Date published: 2016-07-14
Rated 1 out of 5 by from Waste of money It used to sync with polar personal trainer but since the update, that is no longer the case. They only reason I bought this model is because it syncs the personal trainer. Polar just made it obsolete and an utter waste of money.
Date published: 2016-07-13
Rated 5 out of 5 by from Easy, helpful, comfy I have slowly been adding to my polar products....first, the loop. Than the scale.....now the heart monitor. I just love them all!! I am thankful for the website videos in getting started and syncing. I look forward to upgrades!!
Date published: 2016-06-24
Rated 2 out of 5 by from Good Sensor, horrible app. I am on my fourth H7 heart rate sensor. I have been using them because they are accurate and come with good app (no anymore). This sensor needs a new battery every three month, which is not necessarily an issue but battery door is very difficult to open and breaks within a year, so sensor have to be replaced. Please make it rechargeable! Polar Beat app that pairs with sensor and allows one to track workouts used to be good. But they recently released a new version, which is completely useless. They removed essentially functionality (weekly summary, training load, upload to polar trainer, auto-lock disable, etc) and changed color scheme to "ugly" (no there is no customization options). They refused to make previous version available as separate app, so that users can continue to use it. At this point there is absolutely no reason to buy H7 heart rate sensor. I am getting a different brand after my current sensor breaks (sensor usually lasts for about a year).
Date published: 2016-06-22
Rated 1 out of 5 by from Worthless With both the Polar app and iCardio, this sensor spends a large fraction of the time reporting wildly high heart rates. Changing tension, dampness of cintact area, and position has no effect. This has made it impossible to use the sensor, as I can never go more than a few minutes with believable data. Color me frustrated as I begin the RMA process.
Date published: 2016-05-27
Rated 5 out of 5 by from great HR monitor Comfortable during workout,picks up HR no drops,easy connect to multiple platforms,very well made
Date published: 2016-05-22
Rated 2 out of 5 by from Love Polar but May Switch copanies I have had two polar FT4 watches and the accompanying heart rate monitor. It has worked well in the past, never an issue. The new softer strap is super annoying!! It flips up all the time and never stays in places (rides up). I can't get an accurate heart rate on it to save my life! Very disappointing since I've always loved polar products. Any chance I am doing something wrong?
Date published: 2016-05-18
  • 2016-07-26T07:26CST
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