In short:• Single-unit lightweight design • High-sensitivity GPS receiver provides faster acquisition times and improves tracking under trees and near tall buildings • Integrated heart rate monitor. • Customizable screens let you view up to 12 data

predecessor.It's still packed with all the features that made the 305 great: it monitors your time spent running, distance, pace, calories and heart rate, and your runs can be stored in the memory, so you can review and analyse the data and the routes you

to inaccuracy for pool sessions Strengths: Excellent multisport tool, great OW tracking Weaknesses: Excellent multisport tool, great OW tracking Overall: Two steps forward, one backwards.