Inspired by the London Marathon? A running watch – with GPS, distance tracking and health and fitness stats – is a great way to monitor your progress
TomTom’s Runner 3 is waterproof to 40m and comes in four versions with different features. I opted for the top-of-the-line Runner 3 Cardio + Music with GPS, heart rate and built-in music playback.
Read more at Five of the best sports watches