Real-time view heart rate on iPhone
I want to view my heart rate in real time on my iPhone screen. During a HIIT workout, it can be challenging to ensure that I am in the correct heart rate zone while continuously moving. Therefore, I want to place my phone in front of me on the treadmill and monitor my heart rate as I exercise. Is there an app for Apple Watch that works like Fitbit in functionality? There seems to be a gap in this area.
Apple Watch Series 8, 10