Yes, the Oura Ring 5 is noticeably smaller

The Oura Ring 5 is confirmed to be smaller and lighter than its predecessor, the Oura Ring 4. The author advises users to utilize the updated sizing kit, as the new design may result in a different fit compared to previous generations.
Why it matters
As wearable health technology becomes more mainstream, physical design changes significantly impact user comfort and data accuracy, which are critical for health monitoring.
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The article is a consumer-focused product update based on physical observations and manufacturer guidance.
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