Training timer features

Training data: Can display training time, pace, distance, lap pace, lap time, lap distance, average and best pace, elevation and calories

Customizable screens: Choose from up to 37 data types

Lap History: Automatically records up to 1000 laps by day or week; stores approximately two years of data. Download histories to your PC using included software

Training assistant

Courses: Download recorded courses and compete against previous workouts

Auto Pause®: Automatically pauses the training timer when you slow down below a specified resting pace; timer resumes when you start running again

Auto Lap®: Automatically triggers a lap when you reach a specified distance or location. Allows you to run anywhere and still get accurate performance data

Auto Scroll: Cycles through data pages during a workout

Multi-sport: Set up profiles for running, biking and another sport

Advanced workouts: Set up workouts with specific durations and targets (speed or heart rate)

Quick workouts: Allows you to input training goals based on time, distance and pace

Virtual Partner®: Displays a graphic “virtual partner” that will run with the set goal, so you can see at a glance if you are keeping up or falling behind. Works with courses and workout features

Pace alert: Alarm sounds if you are slower or faster than the pace you've input

Time/distance alert: Alarm sounds when you reach the specified time or distance

Interval training : Allows you to set up exercise and rest intervals and number of reps

Navigation features

Receiver: SiRFstarIII™ high-sensitivity GPS receiver

Antenna: Built-in patch; points to the sky when wrist’s in motion for optimum performance

Mark location: Mark and save up to 100 locations

Find location: Look up and navigate to stored locations

Map mode: Electronic map shows your location, along with marked locations. Pointer arrow shows direction to travel when navigating to a stored location

Physical

Display: 1.3"W x .8"H, 160 x 100 pixels

Size: 2.1"W x 2.7"H x .7"D

Case: Waterproof to IEC 60529 IPX7 standards

Temperature range: -4° to 140°F (-20°C to 60°C)

Analyze Workouts

Garmin Training Center®: Included software lets you create and schedule workouts, analyze your data and store it. Full compatability with Windows and future full compatability with Mac

MotionBased®: Web-based application from Garmin that provides more in-depth analysis of your workouts. MotionBased.com provides an online training log, interactive mapping and the TrailNetwork, which allows you to post and share routes with fellow athletes. Full compatability with Windows and future full compatability with Mac

Forerunner series comparison guide

Here's how the units are different:

Forerunner 205:

• Measures time, distance, pace, altitude and calories burned

Forerunner 305:

• Measures heart rate, time, distance, pace, altitude and calories burned
• Compatible with Garmin speed/cadence sensor, GSC 10, to monitor pedaling cadence when cycling