What is a wearable health tracker? The market is flooded with wearable health technology including electronic devices that consumers can wear, like step counters, pulse oximeters, smartwatches and smart jewellery. They are designed to collect personal health and exercise data. My husband is a techie and gadget man and who introduced me to this world of health trackers. He has for a long time used wearable technology to track fitness, training and heart health parameters. The