Got the update last night, was a big one. Still couldn't see Samsung Health Monitor to download. Gave up and went to bed, then this morning the widget suddenly popped up in the widget section of the wearable app where it could be added to my watch. Once it was added through the wearable app, the watch had a link to download the monitor app, which then appeared on my phone. First ECG reading was successful! However the phone shows the Blood Oxygen (what we in EMS call SPO2 or Pulse Ox) widget available to add to my watch, but I have added it several times and it never saves.