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Small wrist top GPS receiver with easy to read display, electronic compass, barometrical altimeter and USB interface. Optional heart rate and cadence sensor.

The GARMIN Foretrex 401 is very easy to use, supports multiple languages and has an extremely sensitive antenna. It is the perfect partner for any outdoor activities. It helps to navigate and displays and records information about your movement, such as the current heading and speed, the travelled path (track), maximum and average speed etc. As an enhancement over the Foretrex 301, the Foretrex 401 has an electronic compass, a barometrical altimeter and it can receive data from an optional heart rate monitor and an optional cadence sensor. The built-in USB interface provides data exchange with a PC.

Contents: Features - Overview - Main Pages - Price - Options - Downloads - Order

GARMIN Foretrex 401

Features:

  • Wrist top device, robust, very handy
  • Easy to read display with background illumination (100x64 pixels)
  • Multilingual user interface in Czech, Danish, Dutch, English, Finnish, French, German, Italian, Norwegian, Polish, Portuguese, Spanish and Swedish
  • Integrated 12 channel GPS receiver with very sensitive built-in antenna
  • Electronic compass to check heading while not moving¹ (can be turned off so safe power)
  • Barometrical altimeter for precise elevation recording²
  • Heart rate monitor, requires optional chest belt with heart rate sensor. The chest belt uses a digitally coded signal, which means, once a heart beat sensor and the GPS have been paired, the GPS will never receive a conflicting signal from another sensor. So you can exercise in close proximity to other sensors without fear of interference.
  • Speed and cadence monitor, requires optional speed and cadence sensor. Measures the number of revolutions of the back wheel and the crank arm with magnets and a wireless sensor. Like the heart rate monitor, this sensor uses a digitally coded signal. Once paired with the Oregon 550t, the GPS will never receive a conflicting signal from another sensor. So you can exercise in close proximity to other sensors without fear of interference.
  • Powered by batteries (2x AAA, last about 17 h)
  • Short time to first fix (TTFF¹: approx. 15 seconds after a warm start, meaning there are valid coordinates of the satellites available, or approx. 45 seconds after a cold start, meaning there are no valid coordinates of the satellites available)
  • Supports WAAS/EGNOS
  • Supports more than 100 different datum (coordinate systems)
  • Supports various display formats include the Swiss Grid
  • Firmware stored in Flash-Memory, can be updated by the user
  • Operating temperatures -20 .. 60°C (-4° .. 140°F)
  • USB interface (connection cable included)
  • Dimensions: 74x44x23 mm (2.93x1.65x0.89 inches)
  • Weight: 64 g (2.26 ounces)
  • Water resistant up to approx. 3 feet (1 meter) for about 30 minutes (IPX7)
  • ¹) In order to check the heading with a GPS, a minimal movement with a speed of at least 5..8 km/h (3..5 mi/h) is required. Where no movement is not possible, a compass is needed.
  • ²) Even though a GPS provides accurate elevation information, the value slightly varies continuously. A barometrical altimeter is therefore more accurate, especially when summarizing elevation changes.
  • ³) TTFF: Time To First Fix, time until the first information about the current position is acquired.

Information for navigation:

  • Stores up to 500 waypoints with name (up to 8 characters), icon (choice of 31 symbols) and coordinates
  • Stores 20 reversible route with up to 125 waypoints per route. Shows the current position in relation to these waypoints (direction and distance)
  • Current position (longitude, latitude, altitude)
  • Current accuracy of the position information
  • Information about the course (turn, off course, to course)
  • Estimated travel time to the next waypoint, rsp. to the final destination
  • Estimated arrival time at the next waypoint, rsp. at the final destination
  • Current time
  • Current bearing
  • Current, average and maximum speed
  • Trip duration and distance (Odometer)
  • Stores up to 10'000 track points in up to 10 tracks (travelled path)
  • Time of sunrise and sunset
  • Supports metric, nautical and U.S. units
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GARMIN Foretrex 401 overview:

Buttons and connectors of the GARMIN Foretrex 401
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Main pages of the GARMIN Foretrex 401:

Note: You may configure the main pages through options. The screenshots below are just examples, the actual appearance may vary from the pages shown below depending on the current settings. Especially the content of the data fields is user configurable. You can choose from 46 different values, see the table below.

Menu Satellites Map Elevation Profile
GARMIN Foretrex 401 Main Menu GARMIN Foretrex 401 Satellites GARMIN Foretrex 401 Map GARMIN Foretrex 401 Elevation Profile
  • Current date and time
  • Manage Waypoints
  • Manage Tracks travelled pathes
  • Manage Routes
  • Manage Settings (time format, language, units etc.)
  • Connect with another unit, a heart rate monitor or a cadence sensor (wireless)
  • GPS (see satellites page on the right)
  • Jumpmaster
  • Accuracy of the position information
  • Number and position of the satellites

  • Accuracy of the position information
  • Strength of the signals
  • Number of the satellites
  • Direction to destination
  • Map with waypoints and travelled path (track)
  • Scale
  • Current elevation above sea level
  • Elevation profile of the travelled path
  • Scale
Navigation Waypoint Trip Computer Timer
GARMIN Foretrex 401 Navigation GARMIN Foretrex 401 Waypoint GARMIN Foretrex 401 Trip Computer GARMIN Foretrex 401 Timer
  • Distance to destination *)
  • Bearing *)
  • Direction to destination
*) You may chose to display one of the values listed in the table below.
  • Symbol
  • Name
  • Elevation above sea level
  • Coordinates
  • Functions: delete waypoint, show waypoint on map, navigate to waypoint, options: project waypoint, fishing/hunting near waypoint, sunrise/sunset, moonrise/moonset and phase of moon near waypoint, send waypoint to other unit
 4 data fields, in this example:
  1. Current speed
  2. Travelled distance
  3. Time of day
  4. Current air pressure
The page "Trip Computer" consists of 7 data fields, split into 4 views. The content of these data fields are user configurable, see table below.
  • Timer counting up or down

Data fields on pages with user selectable data fields:

No Name Explanation
1 AMB PRESS Ambient pressure: Uncalibrated current air pressure.
2 AVG ASCENT Average ascent speed since last reset.
3 AVG DESCNT Average descent speed since last reset.
4 BAROMETER Barometer: Calibrated current air pressure.
5 BEARING Direction from the current location to the destination.
6 CADENCE Revolutions of the crank arm per minute (requires optional speed and cadence sensor).
7 COURSE The direction from the starting location to the destination or from one waypoint to the next waypoint.
8 ELEVATION Current elevation above sea level.
9 FINAL DEST Final destination: Name of the final destination (last waypoint on the current route).
10 FINAL DIST Final destination distance: Distance from the current location to the final destination (straight line).
11 FINAL ETA Estimated time of arrival at the final destination.
12 FINAL ETE Estimated time en route: Estimated time required to travel from the current location to the final destination.
13 GLIDE RATIO The ratio of the horizontal distance traveled to the change in the vertical distance.
14 GR DEST Glide ratio destination: The glide ratio required to descend from the current location and elevation to the elevation of the final destination.
15 HEADING Current moving direction.
16 HEARTRATE Current heart rate (requires optional heart rate monitor).
17 LAT/LON Latitude/Longitude: Coordinates of the current location in WGS84 datum.1)
18 LOCATION Coordinates of the current location in the user selected datum.1)
19 MAX ASCENT Maximum ascent rate since last reset.
20 MAX DESCNT Maximum descent rate since last reset.
21 MAX ELEVTN Maximum elevation since last reset.
22 MAX SPEED Maximum speed since last reset.
23 MIN ELEVTN Minimum elevation since last reset.
24 MOV'N AVG Moving average: Average speed while moving since last reset.
25 MOV'N TIME Moving time: Elapsed time while moving since last reset.
26 NEXT DEST Next destination: Name of the next waypoint on the current route.
27 NEXT DIST Next distance: Distance from the current location to the next waypoint on the current route.
28 NEXT ETA Next estimated arrival time: Estimated arrival time at the next waypoint on the current route.
29 NEXT ETE Next estimated time en route: Estimated travel time from the current location to the next waypoint on the current route.
30 ODOMETER Overall travelled distance.
31 OFF COURSE Distance between your current location and the original course (straight line between start and destination or between the last and the next waypoints).
32 OVER'L SPD Overall speed: Average speed including time while not moving since last reset.
33 SPEED Current speed.
34 STOP TIME Stopped time: Elapsed time while not moving since last reset.
35 SUNRISE Time of sunrise at the current location.
36 SUNSET Time of sunset at the current location.
37 TIME Current time.
38 TO COURSE Direction to travel to return to the planned route.
39 TOT ASCENT Total ascent: The total elevation distance ascended since last reset.
40 TOT DESCNT Total descent: The total elevation distance descended since last reset.
41 TOTAL TIME Time elapsed since last reset.
42 TRIP ODOM Trip odometer: Travelled distance since last reset.
43 TURN The angle difference between the direction from your current location to the destination and the direction you are current heading.
44 VERT SPEED Vertical speed: Rate of altitude gain or loss over time.
45 VMG Velocity made good: Speed closing on a destination along a route.
46 VSPD DEST Vertical speed destination: Measurement of the ascent / descent rate to a predetermined altitude.

1) These values are only available in the large fields of the trip computer.

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Price:

This model has been discontinued; however, you can still order options for the Foretrex 401.

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Options:

Power supply without USB cable Add item to shopping basket CHF 17 [Picture and details]
USB cable for data exchange with PC
(one such USB cable comes with the Foretrex 401)		 Add item to shopping basket CHF 14 [Picture and details]
Power cord for car cigarette lighter Add item to shopping basket CHF 43 [Picture and details]
Mounting kit for handlebar Add item to shopping basket CHF 22 [Picture and details]

All options for the GARMIN Foretrex 401 in detail.

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Downloads:

Here we provide additional documentation and software updates related to the Foretrex 401.

If Adobe Acrobat Reader is not installed on your computer, you may download and install it for free.
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Order:

To order options for the GARMIN Foretrex 401 please:

  1. Click on the price or the shopping basket symbol Show shopping basket to add the item you wish to purchase to the shopping basket. Your browser must accept cookies, otherwise the shopping basket won't work.
  2. If the shopping basket does not work, please use this form.

Please read our terms and conditions.

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Specifications and packaging of the products are subject to change without notice.

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Last modification: 10/27/2024 (RA)

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