Dehydration results in over 1.5 million outpatient visits, 200,000 hospitalizations, and 300 deaths in the US per year. Israeli startup Water.io has developed “Reminder” – an IoT (Internet of Things) smart cap and sensor for disposable water bottles that blinks, vibrates or sounds an alarm when you need to take a drink.
https://www.israel21c.org/smart-cap-tells-you-to-drink-water-take-meds-refill-soap/