A Garmin GPS Watch Review – The Forerunner 405 with HRM by Lance B. WebbTo get fit you need to train hard. Serious training requires careful and accurate record-keeping. The Garmin Forerunner 405 with heart rate monitor makes this possible with the touch of a few buttons.Seasoned atheletes and aspiring marathon runners alike will all get great benefits from the Garmin 405. The reason most training is done in a lackluster fashion is that it requires an effort to compile the records that