| Pros |
Cons |
| Gives Emergency GPS location and calls for help |
High Equipment Cost |
| Can call for non emergency help |
Requires yearly registration |
| Can send ok message |
Have to pay extra for tracking |
| Work every were you can see a good amount of open sky |
Smart phone required for all functions except emergency |
| Can real time track |
Messages cost if sent to a phone (except Emergency) |
| Can send custom messages from a smart phone |
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