My forth watch face using Fitbit Studio.
Background is diamond cutting shapes with a digital and analog clock (plus Month, Date and Weekday).
Activities values: Steps, Heart rate, Elevation and Calories burnt.
Heart beat reading changes colour accordingly, also will the elevation and calories burnt icons.
Battery life ring will change in colour as it decreases.
A settings page is for changing the calendar text colour.
Changing the 12h/24h clock display option in fitbit.com user setting will have the digital clock changed accordingly.