detect if a bangle watch is being worn

isWorn.js

function isWorn() {
  console.log(Bangle.isCharging(), E.getTemperature(), Bangle.getAccel().mag);
  if (Bangle.isCharging())
    return false;
  if (E.getTemperature() >= 33.1)
    // https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8266026/table/T2/
    return true;
  if (Bangle.getAccel().mag >= 1.02)
    return true;
  return false;
}

console.log(isWorn());