Water.io - The Smart Bottle

Water.io - The Smart Bottle

Personal Hydration App

77 ratings
49 reviews
Free

Details

Released
August 14, 2017
Updated
January 4, 2026
Water.io - The Smart Bottle screenshot #1 for iPhone
Water.io - The Smart Bottle screenshot #2 for iPhone
Water.io - The Smart Bottle screenshot #3 for iPhone
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About

This app helps you improve your hydration habits by creating a personalized daily water intake goal based on your physical details. It tracks your consumption, sends reminders, and adjusts your goals based on sports activities and workouts, syncing with popular fitness apps.

βœ“Personalized hydration profile
βœ“Daily hydration goal setting
βœ“Smart bottle tracking
βœ“Hydration reminders
βœ“Sports activity integration
βœ“Weekly hydration reports
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What users say about Water.io

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What's New in Water.io

4.8.4

January 4, 2026

- Improve UI in home screen

User reviews

Love my water bottle

Amazing

The Bottle Not Widget

The bottle works great. I average two days on the life of the battery top. The widget is incorrect. It needs an update

Does Not Sync w/Apple Health

This app lacks the ability to share and sync hydration with health apps like Apple Health. I get the privacy concerns, but the user should be able to choose what data gets shared. This is a major drawback and significantly limits the usability of this device as a β€œsmart” bottle. Please prioritize fixing this.
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Makes Drinking Water Fun

I’m notorious for not drinking water in my house. I literally have to flavor it for it to be tolerable. But that has changed with this Water.io bottle and app.

I’ve realized that when things are gamified on an app, I will do it because it holds you accountable. There is something that clicks in your brain when an app notifies you that you have reached a given goal.

I’m so happy I’ve found this great bottle and accompanying app. It’s going to change my health dramatically. Thanks for making drinking water fun. I’m starting to be able to drink it without having to flavor it. lol
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Missing Apple Watch integration

Missing Apple Watch integration means you can’t add this as a complication. Which means you can’t simply look at your watch to see how much you’ve had to drink. I hope this is added soon as we’re stuck with using this app with their water bottle .

Developer apps

User experience

🐞

Reported Bugs

10 issues

Widget is incorrect and needs an update

Bug

Does not sync with Apple Health

Bug

Missing Apple Watch integration

Bug

App gets stuck trying to update bottle firmware

Bug

Bottle not able to connect to the app after reinstalling

Bug

Inaccurate sensor readings

Bug

Every time the app opens, an ad in Hebrew is shown

Bug

Bottle not syncing with watches and Garmin Connect

Bug

Manual water intake entry lacks time selection

Bug

Cannot add info to past days for sports activities or manual intake

Bug
✨

Requested Features

14 requests

Apple Watch integration and complications

Feature

Sync with Apple Health

Feature

Sync with Garmin Connect

Feature

Add more drink types and custom amounts

Feature

Automatically account for hydration percentage of other drinks

Feature

Set time for manual drink addition

Feature

App reminders only when behind schedule

Feature

Option to show water intake in 12hr clock

Feature

Ability to add info to past days

Feature

More color options for accessories

Feature

Larger bottle size

Feature

Higher water goal setting for athletes

Feature

Proper widget showing hydration and manual add option

Feature

Apple Watch app and complications for hydration status and manual adds

Feature

FAQ

What does the Water.io app do?

The Water.io app helps users improve their hydration habits by creating a personalized daily hydration goal based on their physical details. It tracks water intake, sends reminders, and adjusts goals based on physical activity.

How does the app track my hydration?

The app primarily tracks hydration when used with the Water.io Smart Bottle. It also integrates with sports apps like Garmin and Strava, and can use data from Apple Health to adjust your hydration goals based on workouts.

Is the Water.io app free to use?

Based on the provided information, the Water.io app is free to use. There are no mentions of in-app purchases or advertisements.

What devices is Water.io compatible with?

The app is designed to work with the Water.io Smart Bottle. It also connects with sports apps such as Garmin and Strava, and can utilize data from Apple Health on compatible Apple devices.

Can this app help me manage my water intake during workouts?

Yes, the app is designed to help with workout hydration. By connecting to sports apps or manually adding activities, it adjusts your daily hydration goal to account for increased fluid loss during exercise.