Revealed: Why England hope revolutionary £500 ‘smart ring’ worn by Kim Kardashian will be their secret weapon at Euro 2024

England players and staff have been given a tracking device called the Oura Ring
Gareth Southgate has been seen wearing the piece of kit on his left index finger
LISTEN to It’s All Kicking Off! Ian Ladyman, Chris Sutton and the Mail Sport team give their tournament predictions
A ‘revolutionary’ smart ring worn by Kim Kardashian is emerging as England’s secret weapon here at Euro 2024.

Players and staff have been given a state-of-the-art tracking device called the Oura Ring to wear during their stay here in Germany, with the technology claiming to monitor sleep, body temperature, stress and heart health.

Gareth Southgate is a firm believer in marginal gains and has been open to introducing various developing technologies during his eight year reign as England head coach in his efforts to end the nation’s 58 year wait for a major trophy.

And the piece of fitness jewellery has become an addition to England’s armoury as they prepare for Sunday’s European Championship opener against Serbia.

Indeed, Southgate himself has been wearing the piece of kit on his left index finger and was first spotted with the ring during England’s preparations for the tournament back home earlier this month.

A number of players have also used the ring whilst training here at their Weimar base. During Wednesday’s sessions Conor Gallagher and Marc Guehi were among the players seen wearing the Oura Rings.

Launched by Finnish technology company Oura Health in 2013, the Oura smart ring uses research-grade sensors to provide health data in more than 20 areas.

These biometrics include body temperature, sleep pattern and quality, recovery, stress and heart-rate.

The ring, made out of aerospace-grade titanium, takes measurements using its built-in red, infrared and green LEDs.

Unlike most wearable tech, which measures from the surface of the wrist, the Oura ring’s technology takes readings directly from the arteries in the finger, which are significantly more accurate.

Wearers — who include Prince Harry, Kim Kardashian and the queen of wellness gimmicks Gwyneth Paltrow — can then analyse their data on a mobile app.

The cheapest ring will set you back nearly £300. Then you have to pay a further £70 a year for a subscription to access the data.