The bottle that knows how much you need.
H2OS tracks every sip, sets a daily target that adapts to your day, shows the temperature in the lid and cleans itself with UV-C — cold for 24 hours.
Why H2OS
Not just another bottle.
A target that moves with you.
Most hydration apps give everyone the same 2-litre rule. H2OS reads the weather, your training load from Apple Health or Garmin, and last night’s sleep, then sets a target for today — and re-plans it as the day changes.
You’ll see it as a single clear number, a glow on the lid when you slip behind, and a weekly insight that tells you what actually moved the needle.
H2OS, by the numbers
Discover the scienceQuestions
Everything else you might ask.
How does it know how much I've had?
A sensor in the lid measures every time you drink and sends it to the H2OS app over Bluetooth. Nothing to tap, nothing to log.
Does it work without the app?
Yes. The temperature display, the reminder glow and the UV cycle all run on the bottle itself. The app adds the daily target and the history.
How do I charge it?
Over USB, and a charge lasts weeks of normal use. Only the lid needs charging.
Can I put it in the dishwasher?
Hand-wash the body. The lid holds the electronics, so wipe it down rather than submerging it.
What if I don't like it?
Send it back within 30 days and we'll refund you.
Join the H2OS community
Be part of the future of hydration with H2OS.
Get early access to new colours, app features and hydration science from our team. As part of our community, you’re not just a customer — you help shape what we build next.