Lone worker tracker | Spot Gen 4 is a small GPS enabled, yet robust device that is perfect for outdoor workers, including those in remote locations where mobile phone signal cannot be guarenteed.
SPOT Gen4 Review - Mountain Weekly News
Giant Loop Tracker Packer for SPOT Gen3 & SPOT Gen4 | Adventure Moto Australia
SPOT Gen4 Review | Tested by GearLab
SPOT Gen4 Review: Better Maps, More Messages, and Auto-Send | GearJunkie
SPOT Gen 4 Satellite GPS Messenger. How it works. Should you have one? - YouTube