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Garmin Colorado 300

Product Code: GARC300

Garmin Colorado 300 is the most advanced, yet user-friendly handheld GPS from Garmin. Built for serious thrill seekers on the trial, on the water and on the road. Packed with features, the Garmin Colorado 300 includes a built-in basemap, high-sensitivity receiver, barometric altimeter, electronic compass, SD card slot, colour display, picture viewer and more.

The Garmin Colorado 300 compact high-resolution TFT colour display handheld GPS device accepts preprogrammed microSD cards for adding optional maps on the go. The Garmin Colorado 300 is powered via two AA batteries.



Garmin Colorado 300 has been discontinued.

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We offer UK, Europe and Worldwide deliveries. We despatch orders at 5.30pm on Monday, Tuesday, Wednesday, Thursday and Friday. We need to receive your order on those days by 4.30pm. When possible we may despatch orders received after that time. No orders are despatched after 5.30pm and no orders are despatched on Saturday or Sunday.

We offer FREE UK delivery on all orders of £40.00 or more, plus next working day and guaranteed Saturday delivery options. Click here for further info. All options also appear at the basket pages.

The Garmin Colorado 300 is your personal guide to adventure and provides exceptional handheld GPS navigation in a lightweight, waterproof and compact designed GPS handheld navigator that runs on two AA batteries (not included). The Garmin Colorado 300 stores up to 1000 waypoints, 50 routes and 10,000 tracklogs.

The Garmin Colorado 300 features a Rock ‘n Roller interface, using this revolutionary input wheel, almost all functions can be performed using just your thumb. You can also customise the Colorado 300 interface based on your favourite activity and view photos of your excursions with its picture viewer. Slim, lightweight and waterproof, Colorado 300 is the perfect companion for all your outdoor pursuits.

With its high-sensitivity, WAAS-enabled GPS receiver, the Garmin Colorado 300 locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep valleys. The advantage is clear - whether you're in deep woods or just near tall buildings and trees, you can count on Colorado 300 to help you find your way when you need it the most.

The Garmin Colorado 300 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.

Adding maps is easier than ever with Garmin Colorado 300's SD card slot. Conveniently plug in optional preloaded SD cards including full street and Ordnance Survery topographical data. Just insert a MapSource card with detailed street maps, and Garmin Colorado 300 provides turn-by-turn directions to your destination. The SD card slot is located inside the waterproof battery compartment, so you don't have to worry about getting it wet.

Garmin Handheld FAQs

Do you have a question about the Garmin Colorado 300 or other handheld GPS related question that's not been answered on this webpage? Please see our handheld and Outdoor GPS FAQs for questions from other customers. Plus if the answer to your question isn't featured, use the online form to ask us for the answer. Alternatively please telephone 01733 777623 Monday to Friday (9:30am-5:00pm) to speak to one of our sales team.

Garmin Colorado 300 Features

‣3-inch high resolution TFT colour display
‣Stores 1000 waypoints and 50 routes
‣Provides automatic turn-by-turn directions with optional City Navigator maps
‣Rock 'n Roller input wheel
‣High-sensitivity GPS receiver for peak performance in any environment
‣Electronic compass
‣Barometric altimeter
‣Built-in Atlantic Recreational basemap with automatic routing capability
‣Audible beeper alarm with configurable tone
‣USB compatible for various downloads
‣Waterproof, so it can withstand the elements or an accidental dunk in water
‣Includes MapSource Trip and Waypoint Manager CD
‣Built-in 384mb internal memory
‣SD card slot for additional map data
‣2 AA batteries (not included) provides 15 hours of use
‣Weighs 206.9 grams with batteries
‣Fast USB computer connection so you can transfer waypoints and other data to your computer
‣1 year guarantee

Map Coverage

The Garmin Colorado 300 is pre-loaded with the Atlantic Recreational Routable Basemap v2 which includes Europe, extreme western Russia, Africa, and the Middle East, and covers an area from N75 to S60 Latitude, W30 to E60 Longitude. Also included is a high-level worldwide map with political boundaries and major cities.

Standard map coverage includes:

‣Oceans, rivers and lakes (greater than 30 square miles)
‣Principal cities and some small cities and towns
‣Major motorways and principal main routes
‣Political boundaries (state and international borders)
‣Major motorways and principal main routes
‣Major Airports.

A. Iceland, Great Britain, Baltic States, Denmark, Germany, Benelux, France, Spain, Portugal, Switzerland, Austria, Italy and Southern Africa (up to S20 Latitude) - In addition to the standard map coverage, these areas also include:

‣Lakes greater than 5 square miles, major streams and rivers
‣Exit data for major motorways and/or interstates (Europe Only)
‣Small cities and towns.

B. Northern Africa (above S20 Latitude), Extreme Western Russia, Middle East Standard Map Coverage.

What's in the box? (when purchased from

‣Garmin Colorado 300
‣Worldwide basemap with shaded relief
‣Carabiner clip
‣USB cable
‣MapSource Trip and Waypoint Manager
‣Owner's manual on CD-Rom
‣Quick start guide

Garmin Colorado 300 Accessories

Looking for accessories and spares for the Garmin Colorado 300? Many parts are available including a hard carrying case, retractable lanyard, handlebar mount and handheld fixed mount.

View all Garmin Colorado 300 accessories

Garmin Colorado 300 Maps

Discover the optional range of maps that you can add to the Garmin Colorado 300 here. Maps available include GB Discoverer Ordnance Survey (OS) mapping and City Navigator street-level road mapping.

View all Garmin Colorado 300 maps

Garmin Colorado 300 Questions and Answers

Question: Are you still selling the Colorado 300? if so what is the price please, also what would be the cost of UK 1:50 OS Maps?

Answer: The Garmin Colorado 300 was discontniuned many years ago by Garmin, it has been replaced and supseded multiple times by many new Garmin handheld GPS devices.

We do sell the latest TOPO Great Britain 1:50K map title (released Spring 2018), however Garmin do not list the Colorado 300 as a compatible model.

I would suggest that you consider buying a different Garmin handheld model.

Question: Do you have a rock 'n' roller wheel for Garmin Colorado 300? The rubber on mine is torn.

Answer: I'm afraid we do not sell rock 'n' roller wheels for Garmin Colorado 300. Can I suggest you telephone and speak directly with Garmin UK on 0808 238 0000 to see if they can help.

Do you have a question about the Garmin Colorado 300? Submit your question via our contact page.

Garmin Colorado 300 Technical Specification

‣Technology: GPS
‣Display: 240 x 400 pixels, 256 level color TFT
‣Waypoints: 1000
‣Routes: 50
‣Track log: 10,000 points, 20 saved tracks
‣Built-in memory: 384MB
‣Electronic compass: Yes
‣Barometric altimeter: Yes
‣Data cards: SD card
‣Battery: 2 AA batteries (not included) up to 15 hours operation
‣Waterproof: (IPX7)
‣Dimensions: Width - 60mm, Height - 139mm, Depth - 35mm
‣Weight: 206.9g
‣Guarantee: 1-year
Garmin Colorado 300 manual

Manual requires Adobe Acrobat Reader
Download a free copy here

This product is a sophisticated electronic device which requires that you read, understand, and act upon the information given in the instruction manual (usually available via the above 'manual' link). You will need internet access and, in accordance with the manufacturers’ recommendations, regularly seek out and accept all firmware or software updates offered by the manufacturer. All GPS devices need to ‘see’ the satellites in the sky. Therefore you will need to know that your vehicle does not have glass that will block or impede the GPS signal.

Updates to this product are via the internet. At this product page we state compatibility with specific versions of current internet connection devices, for example: PC, laptop, MAC, smartphone etc. The Consumer Contract Regulations allow you 14 days, from receipt of purchase, to check compatibility with your internet connection device/s. If you choose to replace or update your PC, MAC etc. neither we nor the manufacturer will be responsible if the new/replacement Operating System (OS) is not compatible with the purchased product.

Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

Page updated: 15th March 2024

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01733 777623

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