The GMT 4 Series for Garmin are the ultimate Garmin watch face. The GMT4 watch faces allow you to define thousands of different watch faces for your device. Most features for the GMT 4 series of watch faces are completely free! You do not need to buy an activation key to use the watch face! Just login using your Facebook or Google account and you will be automatically emailed an activation key.
By purchasing the additional activation key you can enable use of the website and extra features that allow up to 8 different profiles to be saved and automatically switch between those styles based on your own schedule.
Download any of the GMT 4 watch faces, Daytona, Monza, Master or Master II, for your device and then purchase your activation key for $4.99 USD to enable the extra features. You will need to have a Google or Facebook account to login.