From freshwater lakes to backcountry trails, Colorado 400i is your guide to the wet and wild. With preloaded U.S. Inland Lakes, this rugged, advanced handheld is ready for adventure. Packed with features, it includes a high-sensitivity receiver, barometric altimeter, electronic compass, SDâ„¢ card slot, color display, picture viewer and more. Even exchange tracks, waypoints, routes and geocaches wirelessly between similar units. When the going gets tough, Colorado leads the way.
Explore Inland Lakes

Colorado comes with built-in U.S. Inland lakes and a worldwide basemap with imagery — perfect for all your outdoor pursuits. Map detail includes shoreline details, depth contours, boat ramps and mile markers for thousands of lakes in the continental U.S.
Share Wirelessly

With Colorado 400i you can share your waypoints, tracks, routes and geocaches wirelessly with other Colorado users. Now you can send your favorite route to your buddy to enjoy or the location of a cache to find. Sharing data is easy. Just select “ send� to transfer your information to other Colorado units.
Rock on. Find Fun

Intuitive and fun, Colorado features a Rock ‘ n Roller® input wheel for easy one-handed operation and supports Geocaching.com GPX files for downloading geocaches and detail straight to your unit. Customize Colorado' s interface based on your favorite activity. Even show off photos of your excursions with its picture viewer. Slim, lightweight and waterproof, Colorado is the perfect companion for all your outdoor pursuits.
Keep Your Fix

With its high-sensitivity, WAAS-enabled GPS receiver, Colorado 400i locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep canyons. The advantage is clear — whether you’ re in deep woods or just near tall buildings and trees, you can count on Colorado to help you find your way when you need it the most.
Get Your Bearings

Colorado 400i has a built-in electronic compass that provides bearing information even while you' re standing still, and its barometric altimeter tracks changes in pressure to pinpoint your precise altitude. You can even use the altimeter to plot barometric pressure over time, which can help you keep an eye on changing weather conditions.
Plug in and Go

Conveniently plug in optional preloaded SD cards for all your outdoor activities on land or water. Just insert a MapSource card with detailed street maps, and Colorado provides turn-by-turn directions to your destination. Add select topographic maps to take advantage of Colorado’ s 3-D map view which gives you a better perspective of your elevation. The card slot is located inside the waterproof battery compartment, so you don' t have to worry about getting it wet.
Get Connected

You' ve been busy exploring and now you want to store and analyze your activities. With a simple connection to your computer and to the Internet, you can get a detailed analysis of your activities and send tracks to your outdoor device using Garmin Connect™ . This one-stop site offers an activity table and allows you to view your activities on a map using Google™ Earth. Explore other routes uploaded from over 12 million customers and share your experiences on Twitter® and Facebook® . Getting started is easy, so get out there, explore, and share.