You can use the following activity tracking services with the app. Many of them are free apps you can download to your smartphone, and don't require a wearable device.
● = All devices, ○ = Some devices
Which activity tracking wearables can I use with the app?
The following activity tracking wearables will sync data with the app. This list is not exhaustive. There are many other wearables that can work with the app through the Apple Health and Google Fit platforms.
● = All devices, ○ = Some devices