Originally Posted by Seattle Forrest

Be aware this is an area of technology that is changing rapidly. If you prioritize having this now, you don't have much choice besides the devices mentioned above. If you're the kind of person who would hate buying one of these devices and seeing them become obsolete in 3 to 5 years, it's very possible that may happen. Now the new iPhone can trigger an SOS through satellites but can't be tracked this way; next year the situation will be more competitive.