Yeah great question. I ditched the hand held gps long ago because of the function of my iPhone. However I used a Garmin inreach for communication in the back country. I also have a Garmin Alpha for my dog while bird hunting which is crazy expensive. I hate paying that much but I would hate it more to tell my kids I lost their dog in the hillsI want to get some new GPSs but is it worth it to get a 64s if I can get it on my phone?