Bellabeat is the world's first and best smart wearable hydration device and the official companion app for all Bellabeat products. The app works in sync with the device to measure your daily water intake, activity, sleep, and more, and it provides you with useful insights to help you reach your wellness goals.

How does the app work? 

It also works with the device to measure your daily calorie intake and burn. You can also choose to set a specific goal, like drinking eight glasses of water per day or having a specific activity that you want to accomplish every day.