If you are having trouble connecting your Polar H10 chest HRM strap or Whoop strap to certain apps, but they connect and sync fine with other devices, such as your https://www-paymydoctor.com/Oura ring or Scanwatch, it could be related to Bluetooth ...
It sounds like you've already done some troubleshooting to try and resolve the issue with your EliteHRV and HRV4Training apps not getting data from your Polar H10 chest HRM strap, as well as the issue with your phone not pairing with your Whoop strap...
