Oh M8 that is funny "after the fact" and I guess it depends on what device model it was as to how water proof it was and what type of washing machine, I have an OLD type Garmin and it's water Proof enough and should survive a Tumble type washer less than 60c degrees, maybe. Hope these nice peps can solve your problem, I will watch and see the info coz one day mine will break and need a replacement.