I want to get step count from wearable devices such as samsung gear fit bit etc from the healthkit api.
I want to know if it is possible to get data of all the wearables from the healthkit itself.
According to Apple, HealthKit provides a central repository for health and fitness data on iPhone and Apple Watch.
Health Kit works only for iOS and WatchOS devices.
If you need to integrate Fitbit data into your iOS App, you need to use their api.
According to Samsung developer page, Companion applications are not supported for iPhone.