It's fair to say the many variations of the Apple Watch – and, more broadly, smartwatches in general – have revolutionised the way people monitor their health. Users can use a wrist-mounted device to track their heart rate, blood oxygen saturation, stress levels, and more.
And Apple is showing no signs of slowing down. The company has been pursuing technology that would allow users to monitor their blood glucose without needing to prick their skin and take a blood sample.
