News · published 2026-10-29

Oura reports Ring 4 sync issue after firmware 2.13.1

Oura says some Ring 4 devices may stop syncing after the update, particularly after a phone change. The issue remains open; the company describes a charger workaround.

Person wearing a generic smart ring while reviewing research notes
Editorial illustration with generic, unbranded hardware; not a product test.

Who may be affected

Oura lists an open issue affecting some Oura Ring 4 devices on firmware 2.13.1. It says syncing may stop after a user changes phones without a factory reset following initial setup. Oura has not stated how many people are affected or confirmed data deletion.

Oura’s suggested workaround

Place the ring on its charger, open the Oura app while it remains on the charger, and wait for it to connect and sync. Oura says these steps have resolved reported cases; they are not a guaranteed fix. If the problem continues, consult Oura support.

What remains uncertain

The company has not published a fix date or established that all Ring 4 owners are affected. This report does not establish that Ring 5 or other models have the same issue, and it does not change the ring’s wellness or medical status.

Read the product record

The full record separates specifications, manufacturer claims, evidence limits and market availability.

View Oura Ring 4

Sources

Not medical advice. Consumer wellness signals cannot diagnose or exclude a condition.