Apple Watch vs Fitbit: How accurate are they as sleep trackers? | ZDNET
Can I use my Fitbit smartwatch or fitness tracker with an iPhone?
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) : Electronics
How to Set Up On-Wrist Phone Calls (Fitbit Versa 3 / iPhone) - YouTube
Amazon.com: Smart Watch for Men Women(Answer/Make Call),Alexa Built-in,1.7"Fitness Tracker with Heart Rate SpO2 Sleep Tracking,60 Sports Modes,5ATM Waterproof Activity Trackers and SmartWatches for Android iPhone : Electronics