![Polar OH1 - Heart rate sensor for cellular phone, GPS watch, activity tracker - M-XXL - black - Walmart.com Polar OH1 - Heart rate sensor for cellular phone, GPS watch, activity tracker - M-XXL - black - Walmart.com](https://i5.walmartimages.com/asr/f3d016fe-d48a-471e-af3f-fbeec2df6971_1.b43af75204f0f52ed0dbff57b92e00d8.jpeg)
Polar OH1 - Heart rate sensor for cellular phone, GPS watch, activity tracker - M-XXL - black - Walmart.com
Polar - Introducing Polar OH1 optical heart rate sensor. Optimized for use on the lower or upper arm, Polar OH1 provides an alternative method for measuring your heart rate during training. In
![Polar Verity Sense, Polar updates its optical pulse sensor OH1 - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS... Polar Verity Sense, Polar updates its optical pulse sensor OH1 - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...](https://www.correrunamaraton.com/wp-content/uploads/2021/02/polar-verity-sense-4.jpg)
Polar Verity Sense, Polar updates its optical pulse sensor OH1 - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...
![Polar OH1 - Heart rate sensor for cellular phone, GPS watch, activity tracker - M-XXL - orange - Walmart.com Polar OH1 - Heart rate sensor for cellular phone, GPS watch, activity tracker - M-XXL - orange - Walmart.com](https://i5.walmartimages.com/asr/b7f230a8-dc9e-40d1-9e60-e3cccc367dd8_1.e5c5ff24282e6ff2787c3e9f10dbe7c6.jpeg)