Oura acknowledges Ring 4 sync bug tied to firmware 2.13.1
Oura has confirmed that its firmware version 2.13.1 update is causing some Ring 4 devices to stop syncing with the companion app. The company says the issue arises when users switched phones after initial ring setup without performing a factory reset, and typically blocks syncing for a day or two. Oura notes that placing the ring on its charger and opening the app resolves the problem.
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The bug could temporarily deny users access to sleep, recovery, and activity data, which are central to the Ring 4's value proposition as a health-tracking device. Because Oura has published a workaround rather than a patched firmware release, users may need to self-diagnose the issue rather than wait for an automatic fix, which could affect trust in future firmware rollouts.
- Firmware 2.13.1 can stop the Oura Ring 4 from syncing with the app
- The issue is linked to switching phones without a factory reset
- Charging the ring and reopening the app restores syncing
Oura Ring 4 — The article centers on Oura's latest smart ring and its firmware sync quirks, making this a timely pick for anyone curious about advanced health tracking. The Ring 4 offers continuous monitoring of sleep, readiness, and now expanding metrics like Cardio Effort and VO2 Max. It's a sleek, minimalist way to keep tabs on your body's signals throughout the day and night.
See Oura Ring 4 on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: androidauthority.com, 2026-10-28
Published there as: “Oura confirms Ring 4 sync bug, but the fix is simple”
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