Oura Ring 4

Price when reviewed: £349 The Oura Ring 4 is arguably Oura's most important smart ring because there are more rivals than ever before.

- Mike Sawh

That increased competition led by the Samsung Galaxy Ring along with the likes of Ultrahuman, RingConn and Circular shows that Oura is not the only smart ring in town.

To keep ahead of the pack, Oura has improved its ring design, promises more accurate tracking, new metrics to help make better decisions about your day (and night) and delivered a better battery life than the Ring Gen 3.

As a long-term Oura Ring Gen 3 user and having also tested pretty much all other smart rings available, the Ring 4 is a reminder that there are things Oura gets right that its rivals haven't quite cracked yet.

DESIGN

The Oura Ring's appeal is partly down to how good it looks and that doesn't change with the Ring 4. There are six finish options in total. That's silver (pictured), black, brushed silver, stealth, gold and rose gold. The silver and black options are the cheapest to go for with gold and rose gold models coming in the most expensive.

One of the most notable changes is the etching on the outside of the ring to serve as a visual reminder that the ring needs to be worn with the sensors sat against the inside of your finger. It's something that Samsung does on its Galaxy Ring smart ring as well, which is useful but breaks up an otherwise sleek ring.

Those sensors hidden on the underside of that etching now sit more flush with an interior that's now fully encased in titanium. It makes wearing the ring less noticeable and a bit more comfortable to wear than the Oura Ring Gen 3.

There's now just a fully circular version available that does keep it in line with the look of rival smart rings. Oura's Ring still looks different enough and has a generally nicer finish to help it stand out from other rings - Oura users will be happy with the changes.