Garmin has a range of sports watches, on which you can install Apps, both provided by Garmin and by the community. You can find the Apps developed by HarryOnline in the Connect IQ store.
From the feedback I received, I noticed that many people find it hard to change the settings for an App. This can be done on the watch itself, if it provides such an option via the Menu, or using a connected computer or smartphone. On a computer you use Garmin Express, on a smartphone there is the Connect Mobile App. For both I will describe how the settings can be changed.