Omate's kids smartwatch does 3G calls and reliable tracking
 

Smartwatch connoisseurs should already be familiar with Omate, the maker of one of the first full-Android watches with cellular connectivity. Given the recent surge in the number of kids smartwatches, it's no surprise to see Omate also announcing one...

http://www.engadget.com/2016/02/19/omate-wherecom-k3/