HidrateSpark sells bottles that connect to their app to record the amount of water one drinks during the day. I think it would make a great integration. The application can also be used to manually record water intake when not using their bottles.

HidrateSpark does not make this data accessible directly but on iOS, you can connect Apple Health and use our Apple Health integration to read water data. On Android, you can connect the Fitbit app and then use our Fitbit integration.