My daughter is wearing my watch the last few days because her heartrate has been high and I want to monitor whats going on before we go to the doctor. I have her iPhone connected to app through Bluetooth, but I'm logged into the app on my Samsung still so I can see her numbers. Her app is showing about 20 beats per min less than mine. Why is there such a large discrepancy between the two?
For example, today her highest heartrate on iPhone was 134 bpm, but on my Samsung it shows highest at 153 bpm.
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