Yes, the Oura Ring 5 is noticeably smaller

Key points

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• This is not an Oura Ring 5 review.
• That’s coming later, once I’ve had enough time to really test the new durability and battery life claims, plus the new software updates that start rolling out today.
• In the meantime, I did want to provide an answer to a burning question that I’ve seen asked in many Oura Ring comment sections across the internet.
• Yes, it is smaller and lighter than the Oura Ring 4. And for impatient folks considering upgrades, I come bearing photographic size comparisons to the Oura Ring 4 — regular and ceramic versions — plus the Oura Ring Gen 3. A note: Sizing matters a lot with smart rings.