The 1st water.io version, "Reminder", helps users by reminding them when to keep hydrated throughout the day. This version contains a simple reminder that blinks, vibrates, or sounds an alarm to alert users that it’s time to hydrate. The smart cap keeps track of when the water bottle is opened or closed to avoid false alarms. Settings can be changed to alert users to drink during a predetermined period – such as once an hour or once every half hour, and the technology will adjust reminders based on bottle usage so users aren’t reminded to do something they’ve already done.