Premium will start rolling out in September 2019 at $9.99 per month or $79.99 per year. It will be available in English in 17 countries via the Fitbit app.
The device comes with an OLED screen, faster processor, improved battery life and Alexa support.
This is Fitbit's first major integration of a digital health platform and wearables into a national public health program globally.
New devices include Fitbit Versa Lite Edition smartwatch, and a trio of activity trackers - Fitbit Inspire HR, Fitbit Inspire and child-friendly Fitbit Ace 2.
Included in the deal are an upgraded on-device dashboard and goal-based exercise modes; also there are new apps and clock faces.
When it comes to the fourth quarter, Fitbit expects revenues to be greater than $560 million, with device sales down and a higher average selling price.
Fitbit Care combines wearables, digital interventions and health coaching through the Fitbit Plus app to deliver a more personalized healthcare experience.
With Twine Health, Fitbit gets a clinically proven health coaching platform to drive better health outcomes and lower healthcare costs.
The company's first smartwatch is getting better with the day, with a bunch of new health-related apps being announced.
The companies are targeting availability as soon as possible in 2018 and will continue to explore opportunities to help people better manage their diabetes.