I just run my iPhone 4s and Motion X GPS Software. Same deal, download maps ahead of time for an area and if no service is avail you will have the maps. Added a RAM mount to hold the iPhone. iPhone is also connected to the stereo. Plus just plug it into the 12V charger. Works great.
I'm thinking of going with the 7" tablet too but I'd be using a ram mount on the passenger grab bar. I'm a little concerned about the weight making it move around. Do you get any movement / have to re tighten? Are you using the 1" ball on the ram or the bigger one?
I have a garmin 610t. It's small, got to stop to look at it and the tiny screen gets dusty fast. We were going up to sugar loaf and the track feature lost me so it just drew a straight line from the last position it knew I was. Pretty frustrating. We were at 5500-6000 feet with little to no obstructions.
I use a skypro xgps160 in conjunction with my ipad for flying airplanes. Transmits via Bluetooth to the ipad.
Turns out ModArmor makes a case that for this exact GPS unit that attaches to my rollcage. So I purchased it, ran a permanent charging wire, and upgraded to ipad with more off-road friendly software. Works like a champ.
I use the Garmin InReach. I spend a lot of time outside of cell service. I haven't needed for an emergency, but I text my buddies from it. They get a link in the text and it opens up a map with a pin at my location. It's pretty cool
i have a garmin dakota 20, dont use it for trails too much, other than marking my tracks though. i have been tossing the idea of getting a 5" or 7" and using it on the sled and the sxs but just havent pulled the trigger.
i think i will miss the map reading portion of a ride. i can make decisions on which way i want to go on the fly that way. esp where i ride, there are different routes to go to a destination so it allows a variety.