Portable Realtime Mini GPS Tracker for Kids w/ Rechargeable Battery + Geo-Fence - Walmart.com
Amcrest 4G GPS Tracker for Vehicles, Portable GPS Tracking Device with Real Time Tracking w/ 60 Second Updates, Unlimited Text/Email Alerts, Geo-Fencing, 10-14 Day Battery (AM-GL300W-4G)
How to record GPX tracks in the Geo Tracker app - YouTube