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Small wrist top GPS receiver with easy to read display, heart rate monitor and USB interface. Also well suited as bike computer.

As a personal training assistant, the GARMIN Forerunner 305 records the travelled path (track), your heart rate, distance, time and pace/speed, computes the calories burned and helps to achieve your personal workout goals. The device is very easy to use, supports multiple languages and has an extremely sensitive antenna. It is the perfect partner for any outdoor activities. The built-in USB interface supports data exchange with a PC.
The optional speed and cadence sensor plus the mounting kit for handlebar make the Forerunner 305 also well suited as a bike computer.

The Forerunner 305 is especially well suited to provide information about your outdoor activities (track, speed, maximum speed, distance, elevation profile, time a.s.o.). Use the function "mark waypoint" to get the coordinates of the current location. The device also shows the current location in relation to user defined waypoints or a planned route.

Differences between the various Forerunner models:

All models provide similar functions; these are the main differences:

Model / Feature Power supply Interface Heart rate monitor Navigation Dimensions
in mm
Weight
in g
Price
Forerunner 101 batteries (2 x AAA) - - Back to start only 83x43x23 74 discontinued
Forerunner 110 rechargeable battery USB YES
(included with the models pink and red)
- 45x69x14 52 from CHF 188 | EUR 164
Forerunner 201 rechargeable battery SERIAL - Back to start only 83x43x18 78 discontinued
Forerunner 205 rechargeable battery USB - Back to start and routes from waypoints 53x69x18 77 discontinued
Forerunner 210 rechargeable battery USB YES
(Premium monitor)
- 45x69x14 52 discontinued
Forerunner 220 rechargeable battery USB YES
(Premium monitor)
- 45x45x13 41 from CHF 158 | EUR 138
Forerunner 225 rechargeable battery USB YES
(built-in, no belt)
- 48x48x16 54 CHF 248 | EUR 217
Forerunner 301 rechargeable battery USB YES Back to start and routes from waypoints 83x43x18 78 discontinued
Forerunner 305 rechargeable battery USB YES Back to start and routes from waypoints 53x69x18 77 discontinued
Forerunner 310XT rechargeable battery USB (wireless) YES
(premium monitor included in the pack)
Back to start only 54x56x19 72 discontinued
Forerunner 405 rechargeable battery USB (wireless) YES Back to start only 48x71x16 60 discontinued
Forerunner 410 rechargeable battery USB (wireless) YES
(included in the pack)
Back to start only 48x71x16 60 discontinued
Forerunner 610 rechargeable battery USB (wireless) YES
(premium monitor included in the pack)
Back to start only 46x64x14 72 discontinued
Forerunner 620 rechargeable battery BlueTooth, WLAN, USB YES
(HRM-Run with G-sensor included in the pack)
- 45x45x12.5 44 discontinued
Forerunner 910XT rechargeable battery USB (wireless) YES
(premium monitor included in the pack)
Back to start and routes from waypoints 54x61x15 72 from CHF 288 | EUR 252
Forerunner 920XT rechargeable battery BlueTooth, WLAN, USB YES
(HRM-Run with G-sensor included in the pack)
Back to start and routes from waypoints 48x55x13 61 from CHF 478 | EUR 418

Please find a table with detailed technical data in our Buyer's guide.


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

GARMIN Forerunner 305

Features:

  • Wrist top device, robust, very handy
  • Easy to read display with background illumination (160x100 pixels)
  • Multilingual user interface in Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese, Spanish and Swedish
  • Integrated 12 channel GPS receiver with very sensitive built-in SiRFstarIII antenna. The antenna is positioned behind the bended part of the housing and provides the best possible conditions for receiving the satellites signals regardless of the position of the bearer's wrist.
  • Chest belt with heart rate monitor. 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.
  • Powered by built-in, rechargeable battery (lasts about 10 h), battery charger included
  • 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)
  • 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: 53x69x18 mm (2.1x2.7x0.7 inches)
  • Weight: 77 g (2.72 ounces); Chest belt 21 g (0.74 ounces)
  • Water resistant up to approx. 3 feet (1 meter) for about 30 minutes (IPX7)

¹) TTFF: Time To First Fix, time until the first information about the local position is acquired.

Information about your training:

  • Profile: stores personal information such as gender, weight and date of birth (in order to calculate the calories burned)
  • Stores various settings per sport mode (running, biking, other), such as values to be displayed on the custom page, heart rate zones, limits etc.
  • Stop watch with split times (laps). Records split times either manually by pressing the "lap" key or automatically based on a user defined distance.
  • Auto pause: Stops the watch automatically if the current speed drops below a user defined value, e.g. when waiting at a red light or during a short break.
  • Speed alert: Goes off when the current speed exceeds a user defined upper limit or when the current speed drops below a user defined lower limit.
  • Distance alert: Goes off after you have travelled a user defined distance. The alert can be set to go off only once or repetitive.
  • Time alert Goes off after a user defined time period. The alert can be set to go off only once or repetitive.
  • Heart rate alert: Goes off when the current heart rate exceeds a user defined upper limit or when the current heart rate drops below a user defined lower limit.
  • Virtual Partner: This unique feature helps you to achieve certain goals for your workout. Choose one of the following combinations:
    1. Distance & Time: Set the distance for your workout and the time you intend to achieve. Forerunner computes the pace / speed required.
    2. Time & Pace / Speed: Set the time and the pace / speed for your workout.
    3. Distance & Pace / Speed: Set the distance and the pace / speed for your workout.
    The virtual partner will keep exactly the pace / speed required to achieve the goal you have set. Forerunner will constantly measure your current pace / speed and compares it to the virtual partner's pace / speed. It will ask you to speed up or slow down as needed and it shows on the display whether you are ahead or behind your virtual partner.
  • History: Forerunner keeps track of your workouts. It stores the date, time, number of laps, duration, distance, average speed, calories burned, average and maximum heart rate on a daily basis. It also provides weekly overviews and running totals for the duration, distance and calories burned.
  • Navigation: Indicates your current location in relation to user defined waypoints. You can create routes with these waypoints. The GPS will guide you from one waypoint to the next indicating current direction and distance. You can save 50 reversible routes.
  • Back to start: This feature helps you to travel all the way back to the starting point of your trip.
  • Stores up to 100 waypoints with name (up to 6 characters), icon (choice of 29 symbols), coordinates and elevation.
  • Stores up to 1'000 laps.
  • Supports metric and U.S. units.
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GARMIN Forerunner 305 overview:

Buttons and connectors of the GARMIN Forerunner 305
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Main pages of the GARMIN Forerunner 305:

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 37 different values, see the table below.

Satellites Menu Settings Change Sport
GARMIN Forerunner 305 satellites GARMIN Forerunner 305 main menu GARMIN Forerunner 305 settings GARMIN Forerunner 305 change sport
  • Current position of the satellites in the sky (upper figure)
  • Accuracy of current position information
  • Strength of satellites' signals
  • Number of the visible satellites
  • History (per day, per week, running totals)
  • Training assistant (auto pause, virtual partner, speed alert, distance alert)
  • Navigation (waypoints, goto, routes)
  • Settings (time settings, language, units etc.)
  • General settings (system, units, time format etc.)
  • Settings for the sport "running"
  • Settings for the sport "biking"
  • Settings for other sport
  • Running
  • Biking
  • Other sports

Some settings, the way the Forerunner calculates the calories and sorting of the results are based on the sport chosen.

Map Workout Virtual Partner Heart Rate
GARMIN Forerunner 305 map GARMIN Forerunner 305 workout GARMIN Forerunner 305 virtual partner GARMIN Forerunner 305 heart rate
  • Map with waypoints and planned route
  • Current position (black triangle)
  • Current scale
  • Distance
  • Duration
  • Required pace (time per kilometer)

Compose different workouts and training plans for different sports.

  • Your position (bottom) in relation to the virtual partner (top)
  • Distance between you and your virtual partner
  • Heart rate (in beats per minute or in percentage of your maximum heart rate)
  • Average heart rate for this lap
  • Current heart rate zone (set values for 5 zones from "relaxed" to "very strenuous")
Timer Lap User Profile History
GARMIN Forerunner 305 timer GARMIN Forerunner 305 lap GARMIN Forerunner 305 user profile page GARMIN Forerunner 305 history
  • Current heart rate
  • Time since workout started (stop watch)
  • Current pace (time per kilometer)
  • Distance
  • Current heart rate
  • Pace of the current lap (time per kilometer)
  • Lap time
  • Lap distance
  • Gender
  • Birth date
  • Weight
(This information is used to compute the calories burned and the heart rate zones)
  • Daily overview (time, calories burned, distance)
  • Average pace (time per kilometer)
  • Maximum pace (time per kilometer)
  • Continue to detailed information per lap.

Data fields on pages with user selectable data fields:

No Name Explanation
1 Cadence Revolutions of the crank arm per minute (requires speed and cadence sensor which is available as an option)
2 Cadence - Average Average revolutions of the crank arm per minute for this training unit (requires speed and cadence sensor which is available as an option)
3 Cadence - Lap Average revolutions of the crank arm per minute for the current lap (requires speed and cadence sensor which is available as an option)
4 Calories Amount of calories burned during this training unit
5 Distance Distance traveled during this training unit
6 Distance - Lap Distance traveled in the current lap
7 Distance - Last Lap Distance of last completed lap
8 Distance - Paused Distance covered while timer in auto pause mode
9 Elevation Distance above sea level
10 GPS Accuracy Accuracy of current position information
11 Grade Inclination or declination, calculation based on distance and elevation gain or loss
12 Heading Current direction of movement
13 Heart Rate Current heart rate (heart beats per minute, bpm) (requires heart rate monitor which is included, but also available as an option)
14 Heart Rate - Average Average heart rate during this training unit (requires heart rate monitor which is included, but also available as an option)
15 Heart Rate - Lap Average heart rate during current lap (requires heart rate monitor which is included, but also available as an option)
16 Heart Rate Zone Current heart rate zone (the Edge 305 computes 5 heart rate zones based on the user profile) (requires heart rate monitor which is included, but also available as an option)
17 Laps Number of completed laps during this training unit
18 Pace Current pace (time per distance)
19 Pace - Average Average pace over the duration of the current training unit (time per distance)
20 Pace - Best Best pace achieved during current training unit (time per distance)
21 Pace - Lap Average pace during current lap (time per distance)
22 Pace - Last Lap Average pace during last completed lap (time per distance)
23 Pace - Zone Current range of pace based on your pace zone settings (time per distance)
24 Speed Current speed (distance per time)
25 Speed - Average Average speed during current training unit (distance per time)
26 Speed - Lap Average speed during current lap (distance per time)
27 Speed - Last Lap Average speed during last completed lap (distance per time)
28 Speed - Maximum Maximum speed during current training unit (distance per time)
29 Speed Zone Current speed zone based on your speed zones settings, rsp. on the current training program (distance per time)
30 Sunrise Time of the theoretical sunrise at the current location
31 Sunset Time of the theoretical sunset at the current location
32 Time Elapsed time since the start of the current training unit
33 Time - Average Lap Average time to complete the laps so far
34 Time - Lap Elapsed time since the start of the current lap
35 Time - Last Lap Time to complete the last completed lap
36 Time - Paused Time elapsed while timer in auto pause mode
37 Time of day Current time
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Training Center:

You may download this software either from GARMIN's website or from our server, see Downloads below. The software requires a PC with Windows 2000 or later and an USB connector or an Intel-based Mac or PowerPC (G3 or newer) running OS X 10.4 or later with an USB connector. Training Center provides the following features:

Examples:

Hint: Click on the images for an enlargement

User profile Overview graphics Overview graphics
Training Center user profile Training Center overview graphics 1 Training Center overview graphics 2
Username, gender, weight, date of birth, speed zones etc. Calendar, logs, track, graphical representation for elevation and pace Calendar, logs, track, graphical representation for grade and speed
Overview values Graph speed over time Detailed map with track
Training Center overview totals Training Center graph speed over time Training Center detailed map
Calendar, logs, totals, graphical representation Graphical representation speed over time If you own a map with detailed information (e.g Topo Switzerland), you can display the track on these maps as well
Training schedule Workout (example 1) Workout (example 2)
Training Center training schedule Training Center workout 1 Training Center workout 2
The Training Center helps you to manage work outs and training schedules.
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Price:

This model has been discontinued; however, you can still order options for the Forerunner 305.

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Options:

Power supply without USB cable Add item to shopping basket CHF 22 | EUR 19 [Picture and details]
Power supply with USB cable
(One such power supply comes with the Forerunner 305)
Add item to shopping basket CHF 24 | EUR 21 [Picture and details]
Power cord for car cigarette lighter Add item to shopping basket CHF 39 | EUR 34 [Picture and details]
USB cable for data exchange with PC
(One such cable comes with the Forerunner 305)
Add item to shopping basket CHF 15 | EUR 13 [Picture and details]
Base
(One such base comes with the Forerunner 305)
Add item to shopping basket CHF 21 | EUR 18 [Picture and details]
Belt for heart rate monitor Add item to shopping basket CHF 16 | EUR 14 [Picture and details]
Premium chest belt with heart rate monitor (soft fabric strap for more comfort) Add item to shopping basket CHF 79 | EUR 69 [Picture and details]
Belt for premium heart rate monitor Add item to shopping basket CHF 65 | EUR 57 [Picture and details]
Speed and cadence sensor
(Such a speed and cadence sensor comes with the Edge 705 with speed and cadence sensor and with the Edge 705 with heart rate monitor and speed and cadence sensor)
Add item to shopping basket CHF 68 | EUR 59 [Picture and details]
Foot-Pod Add item to shopping basket CHF 89 | EUR 78 [Picture and details]
Mounting kit for handlebar Add item to shopping basket CHF 22 | EUR 19 [Picture and details]
Wrist strap Add item to shopping basket CHF 19 | EUR 17 [Picture and details]
Wrist strap with hook and loop fastener Add item to shopping basket CHF 14 | EUR 12 [Picture and details]
Soft case Add item to shopping basket CHF 28 | EUR 24 [Picture and details]

All options for the GARMIN Forerunner 305 in detail.

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Downloads:

Here we provide additional documentation and software updates related to the Forerunner 305.

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 Forerunner 305 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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