Oura Ring 5 review: a stunning generational leap for smart rings

Slimmer, longer lasting and much easier to live with, new Oura sets a very high new bar for health-tracking wearables Oura’s new Ring 5 is a massive upgrade for smart rings, dramatically shrinking in size and weight to bring them right into line with standard wedding bands and other jewellery. It is finally a smart ring you can genuinely forget you’re wearing. The Ring 5 is a straight replacement for the popular Ring 4 and costs from £399 (€399/$399/$A649), though it requires a £5.99 (€5.99/$...

By Samuel Gibbs Consumer technology editor