Fitbit Versa 4 Fitness Smartwatch with built-in GPS and up to 6 days battery life - compatible with Android and iOS. : Amazon.co.uk: Electronics & Photo
Fitbit Versa 2 review: Inching towards greatness
Amazon.co.jp: Fitbit Versa 2 Smartwatch, Stone/Mist Gray, 6+ Days Battery Life, Equipped With Alexa Installed : Electronics