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Garmin Forerunner 305 Wrist-Worn GPS Personal Training Device with Heart Rate Monitor

by Garmin
4.4 out of 5 stars  See all reviews (431 customer reviews)

Available from these sellers.


  • Garmin Forerunner: Sleek wrist-mounted sports performance trainer with high-sensitivity GPS receiver and heart rate monitor
  • Monitors heart rate, speed, distance, pace, and calories burned for smarter, more effective conditioning
  • Powerful GPS navigator provides faster acquisition times and improves tracking under trees and near buildings
  • Delivers detailed post-workout analysis on bundled Training Center PC software (connects to PC via USB)
  • Includes rechargeable lithium-ion battery; measures 2.1 x 0.7 x 2.7 inches (W x H x D); 1-year warranty
See more product details
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There is a newer model of this item:
Garmin Forerunner 210 GPS Sportswatch with Heart Rate Monitor Strap Garmin Forerunner 210 GPS Sportswatch with Heart Rate Monitor Strap 3.9 out of 5 stars (35)
£143.95
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Product details

Download the product manual [853kb PDF]
  • Item Weight: 77 g
  • Boxed-product Weight: 907 g
  • Batteries 1 Lithium ion batteries required.
  • Item model number: Forerunner 305
  • ASIN: B000FMQ296
  • Date first available at Amazon.co.uk: 5 May 2006
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (431 customer reviews)
  • Amazon Bestsellers Rank: 4,213 in Electronics (See Top 100 in Electronics)

Product Description

Manufacturer's Description

Form meets function with Garmin's next-generation, sleek and stylish line of personal trainers the Forerunner 305 & 205. Don't let their good looks fool you. These taskmasters will continually push you to do your personal best. The Forerunner 305 combines all of the popular features found in the 301 along with a high-sensitivity GPS receiver, new courses feature, and robust ANT wireless heart rate monitor for optimal performance.

Designed for athletes of all levels, this running partner and personal trainer has one goal in mind a better you. It continuously monitors your heart rate, speed, distance, pace and calories burned so you can train smarter, more effectively. It tracks your every move with a super-sensitive GPS that even works on tree-covered trails and near tall buildings. Receive a detailed post-workout analysis on the PC with included Garmin Training Center" software.

The Forerunner 305 keeps you on track with innovative features including:

New! Sleek, stylish, lightweight design that "wraps" the GPS antenna around part of the wrist for a better view of the sky, improving reception during training

New! High-sensitivity GPS receiver provides faster acquisition times and improves tracking under trees and near tall buildings

New! Robust ANT wireless heart rate monitor with softer, more comfortable chest strap and superior battery life eliminates cross-talk with other devices to reliably measure and send heart rate data, and helps you train in your zone

New! Customizable screens let you view up to 12 data fields on 3 data screens for immediate feedback on the information you need most when training

Multi-sport" capability lets you seamlessly transition between sports without resetting the unit, so you can use it for running, biking, and more

Easy to use no calibration required. Just turn it on and go

Customize your Forerunner 305 to get the most out of your training. To help you achieve your personal best, the Forerunner 305 includes the following smart features:

New! Courses feature lets you download recorded courses and compete against previous workouts

Auto Pause® pauses and resumes training timer based on a specified speed so you never have to start or stop the timer

Auto Lap® records lap data when you reach a specified time, distance or position so you never have to punch the lap button

Virtual Partner" lets you train against a digital person at specified time, distance or pace goals

AutoScroll" cycles through data pages during a workout

Monitor your pedaling cadence as you ride with the purchase of the GSC 10. Like the heart rate monitor, this self-calibrating, wireless speed/cadence sensor uses the same robust ANT wireless technology to reliably measure and report your pedaling strokes per minute.

Included Garmin Training Center software helps you tailor workouts to meet specific goals and objectives. Create your own workouts or use workout templates included on the CD. Interactive analysis tools let you chart performance overlaid on a map.

Data acquired by the Forerunner may also be analyzed with MotionBased.com, a web-based application that has partnered with Garmin. MotionBased" provides in-depth analysis of your workouts, online mapping and route sharing that will take your training to the next level. Endurance athletes may also use the Forerunner with TrainingPeaks.com, an easy-to-use web based training system designed to help athletes train for any event.

Forerunner 305: You'll like the results

Box Contains

  • Forerunner® 305
  • Heart Rate Monitor
  • Garmin Training Center CD
  • Docking Cradle
  • Expander Strap
  • A/C Charger
  • PC/USB Interface Cable
  • Quick Start Guide
  • Owner's Manual


  • Customer Questions & Answers

    Customer Reviews

    Most Helpful Customer Reviews
    463 of 467 people found the following review helpful
    5.0 out of 5 stars Seriously good gadget for serious athletes 21 April 2008
    Verified Purchase
    OK, first looks - you are thinking to yourself "But what if someone tries to land a helicopter on it's enormous surface while I am out running?!"

    Well, don't worry about it. Yes it looks bulky but when you are out running you never notice the size and it's easy to appreciate the highly configurable and easy to read display. This device is all about options. I choose to run with the four following items all simultaneously displayed:
    Heart Rate, Elapsed running time, Average pace in km/h and Total Distance

    I can of course choose to see other bits of information and have the screens changing at intervals I determine but part of the joy of running is getting away from it all and looking where you are going! The device just works, capturing all that lovely information about your heart, what kinds of slopes you are running on, how far you are travelling.

    I once got lost in some big woods near where I live, then I simply turned the watch into navigation mode and was able to trace my way back through the forest to where I started from - absolutely brilliant gadget.

    The real fun with the Forerunner comes when you get to analyze the data. The software provided with the watch is very basic. Most people I know download the excellent Sport Tracks software which is freeware from Zone 5 Software. To use this software you also need to have installed on your Windows PC a version of .NET from Microsoft (this is just some extra software for the Operating System to allow programs written in a certain way to run - again, it's a free download from Microsoft).

    Now you can amaze your friends and family about how far you run, how fast you go, how big the hills are you are running up, amaze them with how many calories you've burnt off.
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    247 of 250 people found the following review helpful
    5.0 out of 5 stars Excellent 25 Sep 2007
    This is an amazing device. I thought I would add the following to previous reviews.

    Answers to the questions I couldn't sort out before purchase (as a triathlete):
    1. Can you swim with it? Sadly not. Although certified as waterproof it is not sufficiently watertight to swim with.

    2. Can you download routes FROM memory map TO the device i.e. brand new runs/bikes planned at home on the map? YES - but you need to upgrade memory map 2004 software to the USB supporting version via their website. The device will then guide you around the planned course.

    Added suggestions:

    Everyone should check out SportTracks software (shareware - zonefive) which is vastly superior to the Garmin packaged applet. SportTracks integrates with google earth and automatically generates satellite images of your route.

    The pre-loaded advanced training packages are good for turbo sessions. Obviously the GPS is useless but the watch will monitor your heart rate & cadence (with attachment) and instruct you through a pre-set or custom pre-programmed workout e.g. Cycle in zone 3 for 5 mins; Cycle in zone 4 for 2 mins etc.

    Other bonuses over my old GPS and heart rate monitors:
    It charges via USB while connected to the computer.
    It has a coded heart rate belt - no cross-talk in the gym.
    It has excellent GPS reception in the woods (much superior to my Geko 301).

    All in all: For £150 a bargain. It has virtually replaced my old HRM and my GPS.

    Downsides? £150 is still a lot. The large unit might put you off. It looks a bit retro. Can't swim in it. I now *know* that I run as slowly as I thought!
    Was this review helpful to you?
    62 of 63 people found the following review helpful
    4.0 out of 5 stars Great Gadget 1 April 2008
    By R. J. Hole VINE VOICE
    Verified Purchase
    This is a good gadget, one that is getting plenty of use. It has certainly made me change the way I run and encouraged me to find out more about different methods of training. The first time I used it I set it to alert me whenever I dropped below a certain pace and I ran my best time for that course. The heart monitor works well but I recommend that you set your own heart rate zones as they were too low initially. There are plenty of links on Runners World to help you do this. I used the formula 214-(0.8*age) to get my estimated maximum heart rate which seems to work well enough for me. Working out the zones was not immediately obvious so take bit of time to understand how they are calculated. You have to apply the percentages to the Working Heart Rate then make sure you add your resting heart rate otherwise you find your zones are much too low.

    The Training Center software is reasonable for looking at the recorded data on your PC. The map is only useful to identify whereabouts you were, e.g. I can see that my maximum heart rate was near the top of a hill that I decided to run up quickly. The map is just a dotted line and the elevation is not all that accurate. From Training Center you can also view the route in Google Earth.

    I also load the data into MapMyRun which gives a proper map with satellite pictures (similar to Google Earth but without the fancy stuff like 3D) which makes it easy to see off road routes. It also shows the elevation profile which seems a lot more accurate. The best feature of MapMyRun is for inputting new courses you are considering. It makes it easy to design a route that will be the distance you require. You can load these back into your Garmin and use them as routes.
    Read more ›
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    Most Recent Customer Reviews
    5.0 out of 5 stars good
    It served me very well and all though I am semi retired from running my highlight with it was running the London marathon wearing it.
    Published 2 months ago by Jaime
    5.0 out of 5 stars Superb Product
    My wife loves this product and uses it all the time. Must be the best product on the market for runners.
    Published 2 months ago by A. Squitieri
    4.0 out of 5 stars great while it lasted
    would have got full stars but display went after a few months but i will say is i got a free upgrade to the 310xt all done with a very quick return
    Published 2 months ago by jonathan farrelly
    4.0 out of 5 stars Good training device
    This watch gives distance, pace, timing and other data to an accuracy of around 99%. I like the autolap feature. Read more
    Published 3 months ago by Jish
    3.0 out of 5 stars It is Okay BUT
    The watch is O.K. but it is very slow to pick up the GPS signals, also if your arm is just hanging next to you it takes even longer. Read more
    Published 4 months ago by Thomas Szigeti
    5.0 out of 5 stars Never let me down
    I've used the Forerunner 305 for several years now whilst working and training. It is solid and reliable, never once letting me down. Read more
    Published 4 months ago by Fell Running Guide
    4.0 out of 5 stars Forerunner
    Has all what you need for those long / short training sessions, good when hooked with pc to see you actual training session on a graph that enables you to monitor past and present... Read more
    Published 4 months ago by mike carney
    5.0 out of 5 stars Great bi of kit
    superb GPS iv had mine 2 years now and its still going strong and I use it a few times a week
    Published 5 months ago by andy
    5.0 out of 5 stars Customer Service excellent - product not in working order
    The watch looked in excellent condition and arrived very quickly. Unfortunately, it became clear that there was an issue with an internal connection after one use. Read more
    Published 5 months ago by Dominic Blake
    4.0 out of 5 stars Good for motivation
    As a scientist I love the amount of data this kit can give you. Good for motivation trying to improve over the weeks and months. Read more
    Published 6 months ago by M. Davidson
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