Last time I checked (a year ago) there were basically 5 options. Garmin has several models and prices, Bivy Stick, Spot, Zoleo, and Motorola all have a single item for sale. All of them except SPOT use the Iridium satellite system. All of them except Garmin sell retail for about $200. If you have an AT&T cell phone you can add a Motorola for only $5.00 per month, other than that they all have limited programs for about $20.00 per month. They will all do tracking and text messages, but they have priorities. Bivy stick also works as a power bank and is set up for weather forecasts, Zoleo has a very good system of weather forecasts but also sends text messages and Email with your own Email and phone numbers. Google is your friend, spend some time to compare them and see what looks best for you. Bivy stick has a strange setup where if you send an SOS message it goes to a private company who would bill you for services if you did not have an annual subscription, last time I Heard SPOT would make one phone call to the local county sheriff to report it. They all have different options. A word of warning if you are checking them out from work, SPOT's website is "Find me spot". com, "Find the spot" .com is a gay porn site.
