smart-ring

A privacy-first, subscription-free health tracker for affordable wearables.

Reverse engineering smart ring protocols

An open-source smart interactive ring based on ESP32-C3 featuring trackball input, air mouse, IMU gesture recognition, BLE HID, low-power sleep, and BLE OTA updates, designed as an ultimate wearable controller for AR/VR/MR glasses, tablets, PCs, and beyond.

Read information via Python from Colmi Smart Ring

Wozai — a relationship-centered life-record and entrustment project for the Hong Kong Physical AI Hackathon, combining grounded AI, Alloop HRV, wearable inputs, and human feedback.

A thumb-worn multimodal smart ring, callled "mRing", is designed to support mid-air interactions with Computers/TV/Phone/AI/Robots, leveraging micro touch gestures between thumb and other 4 fingers

Reverse-engineering the Colmi R02 smart ring: byte-patched firmware, a measured 352Hz accelerometer ceiling, and a ring-based typing decoder.

Ultrahuman makes the Ring AIR and Ring Pro smart rings and the M1 continuous glucose monitor (CGM), a subscription-free metabolic-health wearable ecosystem. Its Partner (UltraSignal) API lets approved partners read user-consented health metrics - sleep, HRV, resting heart rate, skin temperature, SpO2, movement/recovery indexes, VO2 max, and (with…

Ring.Glass R1 source code — a premium smart ring for smart glasses control, device unlocking, and comprehensive health monitoring. Visit https://ring.glass

Companion Android app for Ring•One smart ring · Nordic nRF54L15 · ZephyrRTOS

Cloud-free Home Assistant integration for $10 Lefun-protocol BLE smart rings + fused-presence follow-me lighting

ZephyrRTOS BLE firmware for the Ring•One industrial smart ring — Nordic nRF54L15 · nRF Connect SDK v3.3.0 · by Dotstar Consulting

🌅 A custom-built Oura: sleep, recovery & activity scores from a COLMI R09 smart ring. Fully offline, no cloud, no subscription. Kotlin + Jetpack Compose.

Open COLMI R12 firmware patch for Zwift heart-rate monitoring over BLE

Libraries for a Liberated smart ring with sensors and Display (SR08)

The open platform for smart rings.

Local-first Android companion for Tsinghua's Tau-Ring smart ring

原生 macOS (SwiftUI) 第三方客户端，连接 Moyoung Da Rings 智能戒指 — 非官方、净室逆向实现

A desktop balance-maze played with your Oura ring.

Repository contains app on Toit programming language running on an ESP32-S3, enables continuous measurement of medical parameters using COLMI R09 or R12 smart rings. The app continuously monitors the smart ring's availability and, if the connection is lost, attempts to reconnect to the device and resume measurements.