iPhone · Personal, noncommercial use · In development
Smart Ring Local
A personal iPhone companion for your Oura Ring 4. The plan: connect directly over Bluetooth and keep your measurements on your phone.
- Hardware
- Oura Ring 4
- Phone
- iPhone
- Connection plan
- Direct Bluetooth
A direct local connection
The planned native app connects the ring to a nearby iPhone over Bluetooth Low Energy. Available measurements would be stored and analyzed locally, without a vendor cloud API, subscription, cloud relay or required Mac.
- Pair directly with the ring using the iPhone's Bluetooth.
- Show available live readings with timestamps and freshness.
- Reconnect after range loss and retrieve missed device history where supported.
- Keep measurements and analysis on the iPhone.
Some measurements may arrive as device history rather than a live stream. Background collection depends on iOS, firmware and what the device exposes. This page describes the project; device connection requires the planned native app.
What needs to be proven
- Reliable pairing and authenticated access on Oura Ring 4.
- Correct units and timestamps, with unsupported measurements identified.
- Repeatable synchronization without duplicate or silently missing samples.
- Reconnect and catch-up after phone locking, app interruption or range loss.
Technical approach & references
Open Health and open_oura are the initial MIT reference candidates. Pairing, synchronization and live readings still need validation on the actual ring firmware. An existing device bond may require an authentication-key strategy; no reset or bond replacement is performed automatically.
HRV, SpO2, steps and derived scores remain unverified. Proprietary model files are not a dependency of the initial personal build.
Open Health app reference · open_oura protocol reference. Preserve upstream licenses and attribution.
Privacy and intended use
A personal, noncommercial experiment with owned hardware. No sale, public app release or hosted health-data service is planned. Local storage, protected authentication keys and a delete-data control are requirements awaiting implementation.
Independence and responsibility
Independent and unofficial. Not affiliated with, endorsed by, sponsored by or supported by Oura Health Oy. The hardware name identifies intended compatibility; its owner retains the trademark.
Experimental wellness information, not a medical device or a substitute for professional care. Provided as-is without warranties; liability is disclaimed to the extent permitted by applicable law. Compatibility, accuracy and freedom from third-party claims are not guaranteed. Personal use and these notices do not override applicable law, agreements or third-party licenses.
Rights concerns and takedown requests
The project owner intends to honor takedown requests from Oura or an authorized rights holder by promptly disabling or removing identified public materials while reviewing the concern. Please include the affected URL or material, the right asserted and your authority to act.