I am looking for a commercial smart-watch for heart-rate sensing via Bluetooth.
It's okay not to receive raw data because it is intended to implement biofeedback by communicating with a wearable robot.
The programming framework is MATLAB and Labview, and I can deal with TCP/IP, Serial, and Bluetooth communications.
Now I'm using a shimmer sensor, but it's not easy to use.
Thank you for any suggestions.