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Garmin Forerunner 305

Product Codes: GAFR305

Garmin Forerunner 305 with Heart Rate Monitor features a high-sensitivity GPS receiver, courses feature, and robust ANT wireless heart rate monitor for optimal performance, superior battery life and eliminates cross-talk with other devices.



Garmin Forerunner 305 has been discontinued.

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The Garmin Forerunner 305 is designed for athletes of all levels. This running partner and personal trainer 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 trials and near tall buildings. Receive a detailed post-workout analysis on the PC with included Training Center software.

The Garmin Forerunner 305 "wraps" the GPS antenna around part of the wrist for a better view of the sky, improving reception during training. This high sensitivity GPS receiver provides faster acquisition times and improves tracking under trees and near tall buildings. 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. The Forerunner 205's 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. The multi-sport capability lets you seamlessly transition between sports without resetting the unit, so you can use it for running, biking, and more. Furthermore customize your Forerunner 205 to get the most out of your training.

The Garmin Forerunner 305 monitors 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 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 Garmin Forerunner 305 may also be analyzed with, 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, an easy-to-use web based training system designed to help athletes train for any event.

Handheld/Outdoor FAQs

Do you have a question about the Garmin Forerunner 305 or other handheld GPS related question that's not been answered on this webpage? Please see our handheld and Outdoor GPS FAQs page 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 Forerunner 305 Features

‣Courses feature lets you download recorded courses and compete against previous workouts
‣Auto PauseĀ® pauses and resumes training timer based on a specified speed so you never have to start or stop the timer
‣Auto LapĀ® records lap data when you reach a specified time, distance or position so you never have to punch the lap button
‣Virtual PartnerT lets you train against a digital person at specified time, distance or pace goals
‣AutoScrollT cycles through data pages during a workout Wireless Heart Rate Monitor
‣GSC10 optional wireless speed/cadence sensor
‣Training Centre software
‣High-sensitivity GPS receiver that provides faster acquisition times and improves tracking under trees and near tall buildings
‣Customisable screens let you view up to 12 data fields on 3 data screens
‣Course feature lets you download recorded courses and compete against previous workouts
‣GPS: High Sensitivity SiRFstarIIIT architecture
‣Lap Memory: 1,000 laps
‣Battery: Rechargeable internal lithium ion
‣Battery Life: 10 hours (typical use)
‣Waterproof: IEC 60529 IPX7 standards (submersible in one meter of water for up to 30 mins.).

Garmin Forerunner 305 Features

The Garmin Forerunner 305 will also calculate the amount of calories you have burned over the course of a workout.

In addition an pace whistle sounds alert when you begin travelling slower faster then desired pace. Distance whistle sounds when you reach a specified duration or distance.

Garmin Forerunner 305 Technical Specification

‣Technology: GPS
‣Installation: Wrist
‣Power: Internal Battery
‣Dimensions: Width - 34.8mm, Depth - 12.7mm, H - 35.6mm
‣Guarantee: 1-year

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

Monday to Friday 9:30am to 5:00pm (UK Time)

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