Fitness tracker for Fido? Experts split on benefits of pet tech

As sales soar, some say trackers can help animal anxiety or weight loss while others advise leaving diagnoses to the vet

Pet health and activity trackers are bounding on to the market but experts are split on whether they are the cat's pyjamas or barking up the wrong tree.

As owners monitor their own step count, heart rate, skin temperature and calorie burn via wearable tech, a host of companies have developed devices to do the same for pets. According to a report by Future Market Insights, the market for pet fitness trackers is expected to grow to $450m (333m) by 2035.