Stanflow

Stanflow keeps a count of what you drink, together with a smart lid on the bottle. The lid reports the volume and the battery over Bluetooth, and sips are written down on their own, without a tap after every drink.

The daily goal is based on your profile and activity. Coffee and tea can be logged separately, with a factor, so a cup of coffee is not counted as a full glass of water. Over a week and a month you can see whether the goal is holding. In the current version the records stay on the phone.