DeLorme inReach Smartphone - $204.88

Stay connected in the most isolated corners of the globe with DeLormes inReach Smartphone. Send personalized updates to friends and family through email, text messages, Facebook and Twitter (additional service required). Automatic waypoints can be sent as well, showing a breadcrumb trail of your progress. Two-way, interactive SOS feature alerts responders of your location and situation in case of emergency. Unit also has full GPScapabilities and it operates on its own or connects wirelessly to your iPhone, iPad, iPod touch or Android device. inReach for Smartphones runs on two included AA batteries for up to 125 hours. Type: GPS. - $204.88