https://www.cnet.com/news/ces-2019-the-dyno-smartwatch-keeps-parents-connected-to-their-kids-for-149/

Aside from programming contacts, parents can track the exact location of their child through the Dyno app for Android or iOS and use geofencing to set up a "safe zone" for kids. Parents will receive an alert when the watch goes outside the established safe zone and another notification when the phone is back in the safe zone.

The Dyno smartwatch also has an SOS button on the side that kids can use to call emergency contacts or 911. The watch will first attempt to call the programmed contacts and calls 911 last if no one on the list answers.