Demo mode and km deep alert

Bulbul Registered Users Posts: 5
Apprentice Traveler
edited January 24 in TomTom Sports
1.My watch is Spark 3 Cardio with Music, may I know what is the function of Demo mode(Under Options selection)?
2. How can I set a 1KM deep alert. My device can alert me when I run every 1 Km?