Fitbit Versa 2 review: A $200 smartwatch and fitness tracker with a battery that won't quit - CNET
Fitbit Versa 4 - Google Store
Amazon.com: Fitbit Versa 2 Health and Fitness Smartwatch with Heart Rate, Music, Alexa Built-In, Sleep and Swim Tracking, Petal/Copper Rose, One Size (S and L Bands Included) : Electronics