When it comes to exercise, no one wants to be seen as having all the equipment, but they have no idea. That said, having one of the best fitness trackers, best smartwatches or, for the most accurate measurements, heart rate monitors can really help improve your health and fitness in the long run.

Ultramarathon swimmer Ross Edgely, whose previous stunts included swimming 157 days and 1,792 miles around Britain, is no stranger to useful fitness tech. In a recent interview with TechRadar to promote the new Disney Plus series Limitless with Chris Hemsworth, we asked the leading author which kit he finds most helpful in his daily exercise routine.