Verified source report
Oura launches Ring 5, world’s smallest smart ring, as it heads towards IPO
Finnish-US startup has sold 5.5m rings worldwide since it was founded in 2013 and is valued at $11bn Stylish Finnish-American smart ring company Oura may be the darling of wearables, adorning the fingers of celebrities and sportspeople, but it is not resting on its laurels as it heads towards an IPO later this year. This week it launched the world’s smallest smart ring, the Ring 5, its latest evolution of the device that defined a whole category. The Ring 5 is 40% smaller and with longer battery life than the highly popular Ring 4 . It also promises to squeeze the health-tracking features of a smartwatch into a less techy piece of jewellery just 2.28mm thick, focused on sleep, stress, readiness and heart health. Continue reading...
What happened
According to The Guardian’s source item, Oura launches Ring 5, world’s smallest smart ring, as it heads towards IPO, Finnish-US startup has sold 5.5m rings worldwide since it was founded in 2013 and is valued at $11bn Stylish Finnish-American smart ring company Oura may be the darling of wearables, adorning the fingers of celebrities and sportspeople, but it is not resting on its laurels as it heads towards an IPO later this year. This week it launched the world’s smallest smart ring, the Ring 5, its latest evolution of the device that defined a whole category. The Ring 5 is 40% smaller and with longer battery life than the highly popular Ring 4 . It also promises to squeeze the health-tracking features of a smartwatch into a less techy piece of jewellery just 2.28mm thick, focused on sleep, stress, readiness and heart health. Continue reading…
Context
The development sits in VINI’s Technology file for readers following technology, science, product policy, markets, infrastructure, and the public consequences of innovation. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-05-28T12:00:21+00:00.
What to watch
Open questions include whether primary sources issue follow-up statements, whether local or market impacts become clearer, and whether additional reporting changes the timeline or adds material context.
Source
Primary source: Oura launches Ring 5, world’s smallest smart ring, as it heads towards IPO via The Guardian. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.
This source-cited VINI report links to the original publisher record. VINI does not republish third-party article bodies without rights clearance. 1 source listed.
Source links
- Oura launches Ring 5, world’s smallest smart ring, as it heads towards IPOThe Guardian - 2026-05-28T12:00:21+00:00
Reader comments
Moderated discussion
Comments are open to authenticated approved accounts, screened for spam and abuse, and published only after newsroom moderation unless editors change the story control.