Whether you’re sailing the high seas or hiking the backcountry, Colorado 400c is your all-in-one adventure guide. Preloaded with BlueChart® g2 coastal charts*, Colorado 400c is made with the saltwater mariner in mind. Packed with features, it includes a high-sensitivity receiver, barometric altimeter, electronic compass, SD card slot, large, high resolution 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 Coastal Waters
Colorado comes with built-in BlueChart® g2 coastal charts* and a worldwide basemap with satellite imagery — perfect for all your outdoor pursuits. Map detail includes shorelines, depth contours, navaids, harbors, marinas, port plans, and coastal roads for the U.S. and Bahamas.
* denotes limitations
Customize Colorado's interface
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. Garmin knows its users have many interests, so the Colorado lets you customize five profiles — automotive, marine, recreation, fitness or paperless geocaching — making the most beneficial features for each activity the easiest to access through quick shortcuts. And every outing with the Colorado can be enjoyed later by downloading and sharing the data as one of nearly two million activities on Garmin Connect™.
Note: Custom profiles do not add mapping. MapSource map products may also need to be loaded for full functionality.
Share Wirelessly
With Colorado 400c you can share your waypoints, tracks, routes and geocaches wirelessly with other Colorado users. Now you can send your favorite hike 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
Intuitive and fun, Colorado features a Rock ‘n Roller™ input wheel for easy one-handed operation (if you prefer a touchscreen interface consider the Oregon 400c) - you really can operate its many features with just one hand — most with just one thumb (see YouTube demo).
Geocaching
The Colorado 400c supports Geocaching.com GPX files for downloading geocaches and detail straight to your unit. Geocaching just got easier with the Colorado, which quickly downloads online information for every cache, such as location, terrain, difficulty, hints and description, so that you don’t have to tote printouts with you. Use the free Garmin Communicator Plugin to make the process quicker and easier.
Colorado users will be the first to experience Wherigo, the newest GPS-based activity from Groundspeak, the people who made geocaching a worldwide phenomenon. Wherigo (pronounced "where I go") is a toolset for creating and playing location-based multimedia experiences in the real world. Using the Wherigo platform, Wherigo authors can build exciting adventure games, historical tours or other innovative activities. Wherigo players use the Colorado or other GPS device running the Wherigo Player application to visit physical locations, use virtual items, interact with virtual characters and solve real world puzzles. Garmin and Groundspeak will host special events to teach people more about Wherigo and let them experience it for themselves.
Keep Your Fix
With its high-sensitivity, WAAS-enabled GPS receiver, Colorado 400c 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.
Keep You Fit
The Colorado also displays air temperature as well as data from an optional heart-rate monitor and/or speed and cadence sensor.
Get Your Bearings
Colorado 400c 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.
 Colorado 400c with optional MapSource Topo maps
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 Colorado 400c with optional MapSource City Navigator maps
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- Preloaded with BlueChart® g2 coastal charts*
- High-sensitivity GPS receiver
- Innovative Rock ‘n Roller input wheel
- Wireless sharing of user tracks, waypoints, routes and geocaches between units
SD card slot for optional mapping and user data storage
Unit dimensions: 2.4”W x 5.5”H x 1.4”D
Large display size (H x W): 2.55” x 1.53”; 3” diagonal (compare to 2.6”-diagonal for GPSMAP 60/76 series or 2.1" diagonal for eTrex H series)
High display resolution (W x H): 240 x 400 pixels
Display type: Transflective Color TFT
Weight: 7.3 oz with batteries
Waterproof standard: IEC 60529 IPX7
Battery type: 2 AA Alklaine or NiMH batteries
Battery life: 15 hours
Electronic compass, barometric altimeter, temperature sensor
Compatible with optional heart rate monitor and speed/cadence sensor (GSC 10)
JPG image viewer can display pictures from the SD card
Geocaching mode: yes (paperless)
- Supports Geoching.com GPX files for complete cache descriptions and hints
- 1000 waypoints/favorites/locations, 50 routes, 10,000 point track log, 20 saved tracks
- Automatic routing (turn by turn routing on roads, no voice prompts) - requires optional City Navigator maps
- Outdoor GPS games, Hunt/fish calendar, and Sun and moon information
- Tide tables
- Area calculation
- Send-to travel tool that enables users to search locations from the convenience of their computer through Google Maps or MapQuest.com, send and save them to their Garmin device, and navigate to the destination. See YouTube video demo for Google or MapQuest.
- Upload custom POIs (ability to add additional points of interest)
User configurable profiles: automotive, marine, recreation, fitness, geocache
Note: Custom profiles do not add mapping. MapSource map products may also need to be loaded for full functionality.
- Colorado 400c
- Preloaded U.S. coastal charts
- Worldwide basemap with imagery
- Carabiner clip
- USB cable
- MapSource Trip & Waypoint Manager
- Owner's manual on disk
- Quick start guide
All NEW in the box just as it comes from the factory. We do not sell used or reconditioned units. Full one year Garmin Factory Warranty.
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