HR data frequency

[HiroyukiTamura]

Platform your question concerns:

• [x] Android
• [ ] iOS
• [ ] Other
• [ ] Platform is not relevant for this question

Device:

• [ ] Polar OH1
• [x] Polar Verity Sense
• [ ] Polar H10
• [ ] Polar H9
• [ ] Other
• [ ] Device is not relevant for this question

Description: I'm trying to develop an HR recording app using Polar Verity Sense. The documentation doesn't mention the frequency of HR streaming, but my app receives data about once every second. Am I correct in my understanding that Polar sends HR data once per second, regardless of the HR value?

[jimmyzumthurm]

@HiroyukiTamura Hi, indeed it is sending at an interval of 1 seconds, as specified by Bluetooth Heart Rate Specification :

"3.1.1.5 Transmission Interval
In typical applications, the Heart Rate Measurement characteristic is notified
approximately 1 time per second and includes the Heart Rate Measurement Value field
and, if supported, the RR-Interval field."

[HiroyukiTamura]

@jimmyzumthurm Thank you for your fast response. I didn't know there's such specification by bluetooth.