The successor to the Garmin Forerunner 301 is here, and it's better than ever. Weighing in at just over 2.5 ounces, the Garmin Forerunner 305 breaks new ground in terms of comfort, style, and performance. Totally redesigned, the 305 gives outdoor athletes and runners real-time information about speed, distance, pace, and heart rate on a device that's easy to use and amazingly compact.

The 305's digitally coded heart-rate monitor--which is worn as a chest strap--sends heart-rate data to the device so you can see whether you're training too hard or not hard enough. Alerts for pace, distance, time, and heart rate are also available. Additionally, the unit tracks speed, distance, pace, and calories burned. Meanwhile, a course feature lets you race against previous runs in order to improve your time or just compare heart rate and pace data at every point of the way.

The Forerunner 305 features the powerful new SiRF GPS navigation chip for supreme accuracy, even under tree cover and between tall buildings. A coded chest strap heart-rate monitor prevents unwanted interference from other devices.

Plus, the 305 is engineered to help folks train better and smarter. Training assistant tools, various distance and time alerts, and bundled Training Center PC software combine to make the device an essential part of any athlete's training program.