I've always been a fan of PLBs for treks through areas devoid of cell service however, there are ever-emerging technologies that improve satellite communications and it seems some of the newer items like those from DeLorme inReach may be a better choice than the traditional PBL. It makes sense that 2 way communication with SAR could be life saving (helo rescue for venomous snake bite, heart attack, head injury, etc) versus a SAR team search on foot and horseback. Has anyone here done any in-depth research on these newer products that combine Sat Phone and PLB technologies that can offer some educated recommendations? I will be venturing further off the grid in the coming years and would like to be able to communicate with hunting buddies (should we become separated), family (for long trips just to let em know I'm okay) and SAR (with locator beacon in case I am alone and losing consciousness). These seem like cheap insurance to me, don't weigh much and since the first rule of any backcountry trip is to return in one piece...seems like a logical precaution. Would prefer a unit that can be used on the ocean or in the Grand Canyon and in pretty much any situation. Long battery life is a plus and an affordable service fee would be nice. Anyone got any advice?