Planning to spend a lot of time in the outdoors? Having a decent GPS device is not a bad idea. It could get you unstuck. The Garmin Fenix GPS Watch is exactly useful for that purpose. You can use this to plan trips, create routes, record waypoints, and connect it to external sensors. You get an altimeter, barometer, and compass. The device is waterproof up to 50 meters. The battery will go for 50 hours in GPS mode and 6 weeks in watch mode. The Garmin Fenix GPS Watch will cost you $400.