![Polar H10 drop during training. This is started from June. I have reset the H10 sensor but it is still dropping during the workout (crossfit). I have 2 possible scenarios.1) the o-ring Polar H10 drop during training. This is started from June. I have reset the H10 sensor but it is still dropping during the workout (crossfit). I have 2 possible scenarios.1) the o-ring](https://preview.redd.it/ch8apbsptm971.jpg?width=1440&format=pjpg&auto=webp&s=bca5ad6d0b8b4f07d4fcf9d4fc844f39fddf42f9)
Polar H10 drop during training. This is started from June. I have reset the H10 sensor but it is still dropping during the workout (crossfit). I have 2 possible scenarios.1) the o-ring
![Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors](https://m.media-amazon.com/images/I/61WDvqUucnL._AC_UF350,350_QL80_.jpg)
Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors
Polar - Our Polar Beat app is now compatible with Apple Watch. http://bit.ly/1L0ue09 This update also fixes the Polar H7 pairing issue. | Facebook
![Polar H7 HR Sensor - Black, Black, M-XXL, With chest strap : Polar: Amazon.com.be: Sports & Outdoors Polar H7 HR Sensor - Black, Black, M-XXL, With chest strap : Polar: Amazon.com.be: Sports & Outdoors](https://m.media-amazon.com/images/I/31359aEbcHL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOURANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA8%252C583%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Polar H7 HR Sensor - Black, Black, M-XXL, With chest strap : Polar: Amazon.com.be: Sports & Outdoors
![Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors](https://images-na.ssl-images-amazon.com/images/I/41eUxIiVtbL._AC_UL210_SR210,210_.jpg)