Hardware Request: A screenless data collection wearable (like the Whoop)

[wibble]

So more or less the PineTime without the screen, and with a better heart rate / O2sat sensor? If the existing sensor is good enough you could get a watch bicep strap, and set the screen for activation by button so it's available if you need it but usually doing nothing.

I think there was a proposal for a better sensor already? It's on a separate flexi circuit.