Case study

RingLink: an offline RingConn Gen 3 client built on BLE protocol research

RingLink reconstructs direct access to RingConn Gen 3 smart rings in an offline Android client. It uses a documented BLE framing and SM3 authentication exchange to sync history and live readings into SQLite, then exports supported health records to Health Connect; it also sends vibration commands for calls and notifications.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-11-03
Language: Kotlin
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a download method observed; no demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Android 8 or newer and a RingConn Gen 3 ring; Health Connect is built into Android 14+ and available as an app on earlier versions.
Prerequisites: JDK 21 to build from source.
Limits: Sleep periods are estimates; sleep stages and vendor scores are omitted.
License: MIT License.

Cite

BibTeX

@misc{ringlink-case,
  title = {{RingLink: an offline RingConn Gen 3 client built on BLE protocol research}},
  howpublished = {\url{https://github.com/zazaulola/ringlink}},
  url = {https://github.com/zazaulola/ringlink},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/ringlink-case/}}
}

Plain text

RingLink: an offline RingConn Gen 3 client built on BLE protocol research. https://github.com/zazaulola/ringlink (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/ringlink-case/

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About this entry

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Primary sources

README.md GitHub · zazaulola/ringlink · Revision 19bcb71
docs/PROTOCOL.md GitHub · zazaulola/ringlink · Revision 19bcb71