CareRing is the the most waterproof device of its type. The ratings are that it can be submerged in 3ft. (1m) of water for 30 minutes. This means that normal activies around water such as bathing and showering, swimming and even sitting in the hot tub are possible. Note that there is an alarm for heat so if the CareRing is held under water in the hot tub for too long, the alarm will trigger) Most accidents for seniors are related to falls and a big part of that is a slip in the bathtub or shower.