Prince Harry appears to have jumped on the latest A-lister wellbeing trend. The 39-year-old Duke of Sussex has been spotted wearing the Oura Ring, a health and sleep tracking device which measures blood oxygen levels, body temperature and activity levels. The high-tech ring - which retails at between £300 and £550 - has rapidly gained popularity amongst health-conscious celebrities, being worn by the likes of Kim Kardashian , Will Smith and Gwyneth Paltrow .

The latest wellness gadget measures and analyses pretty much every health metric imaginable, from heart rate and blood oxygen levels to breathing regularity and body temperature. The device - which boasts up to 99% accuracy - also collects users’ activity and sleep data. For all the latest on news, politics, sports, and showbiz from the USA, go to The Mirror US .

READ MORE: Prince Harry’s unusual therapy that reset his brain and got him out of ‘fight or flight’ mode Harry is no stranger to unconventional health and wellbeing treatments. He has previously opened up about his use of tapping therapy - a method used to treat trauma, anxiety, cravings and pain. Back in 2021, the Duke described how he had used the therapy to overcome his trauma and PTSD, especially since the death of his mother, Princess Diana.

Explaining the science behind tapping therapy - which Meghan Markle is also reportedly a huge advocate of - works, therapy expert Christine Gibson described how the technique can be used when patients find them.