Heart rate readings too high in Fitbit Versa - Fitbit Community
Amazon.com: Fitbit Versa 3 Health & Fitness Smartwatch with GPS, 24/7 Heart Rate, Alexa Built-in, 6+ Days Battery, Pink/Gold, One Size (S & L Bands Included) : Sports & Outdoors
Solved: Heart rate graph gaps - Fitbit Community
Fitness trackers aren't very accurate at measuring heart rate — and that can be dangerous - The Verge