wearos-heartmonitor-wss

Wear OS app that streams heart rate in real time over secure WebSocket.

Build

• Android Studio Jellyfish/Koala, SDK 34
• Open the project, select app run config, deploy to Pixel Watch 3 (Wear OS 4)

Configure

On the watch:

1. Open the app
2. Set Server URL: wss://watch.puls.mrunk.de/ws
3. Paste JWT token ("Bearer" not needed)
4. Tap Save → Start

Server expectations

• Accept Authorization: Bearer <JWT>
• Receive JSON like: { "type":"hr", "bpm":92, "ts":"2025-08-13T10:15:30Z", "source":"wearos-healthservices" }

Notes

• App starts a Foreground Service to keep streaming alive
• Uses Health Services Exercise API for stable, low-latency HR
• No data stored on device; only in-flight streaming