I don't know if I bought this watch right before this last update. But my Sense watch quite working on almost everything. I Don't know if it is the update or because this is a stress watch and wants to see if my stress will end up breaking the watch. But decided to reinstall Fitbit to see if it was the update. RE: I feel there was another update March 20. Now the blue tooth doesn't work and the sync doesn't work again. I should delete this and write my steps on paper. Phone says 4897, FB 4012.