Clip it on
The sensor clips onto the rim of your toilet in seconds — no tools, no plumbing, no professional install.
Some days you're hydrated.
Some days you only think you are.
Throne reads your hydration automatically, with every flush - no strips, no logging, nothing new to remember.
IF YOU KNOW, YOU KNOW
Does this sound like you?
If any of these land, keep scrolling - every one of them has an answer below.
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Afternoon crashes you can't explain?
Even mild dehydration - 1 to 2 percent of your body weight in fluids - measurably drags energy and focus. Throne shows you whether that's your missing glass of water.
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Headaches that come and go?
Dehydration is one of the most common headache triggers. Throne tracks your hydration every day, so the pattern stops being a guess.
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Never sure if you drink enough?
Thirst lags behind need. Throne reads your actual hydration level every time you go, so you know instead of estimate.
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Workouts that feel harder than they should?
Performance dips before you feel thirsty. Your trend shows whether you're training and recovering hydrated.
The definition
Hydration is three things.
Each one is measurable. None of them alone is the whole story.
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What it is
Level
How concentrated your urine is, read optically at every flush - the same signal clinicians use.
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How it moves
Patterns
Day, week, and month scores - whether you're actually drinking enough, not whether you meant to.
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What it drives
How you feel
Energy, focus, headaches, recovery, digestion. Even mild dehydration moves all of them - the level drives the day.
One reading is a moment. The trend is the answer.
How it works
Three steps, zero effort.
Urine strips give you a color chart and a rough guess, once. Throne reads hydration optically at every flush, so the trend builds itself.
Do your business
Live your day as you would. Throne works hands-free in the background — nothing to wear, nothing to log.
See your insights
Open the app whenever you like — your gut, hydration, and urinary trends are already there, in plain language.
The app
What you actually see.
Your hydration score with every flush, the trend behind it, and coaching in plain language.
Hydration score
Know where you stand, every day.
Know where you stand, every day.
Know where you stand, every day.
Every flush updates your hydration score - 0 to 100, read from your urine and compared against your own baseline. When you're running low, the Coach says so plainly and tells you what to do next, like water before your morning coffee.
- Scored 0-100 at every flush
- Compared to your personal baseline
- Plain-language coaching when it dips
Trends
One reading is a moment. The trend is the answer.
One reading is a moment. The trend is the answer.
One reading is a moment. The trend is the answer.
Day, week, and month views show your real pattern - your average, your range, and whether you're actually improving. No streaks to maintain, no logging to keep up with.
- Day, week, and month views
- Your min, max, and average at a glance
- No logging - it's all automatic
What you get
The device + the app.
A quick look — full details live on the product page.
The app
Throne App
Hydration scoresGut patternsUrinary flowLong-term trends
The device
Throne One
Hands-free30-day batteryUp to 6 usersEasy to clean
$399.00 + $5.99/mo · first 3 months free
HSA/FSA eligible — save ~30%
30-day returns · 2-year warranty · free shipping
The app
Throne App
Your dashboard for everything Throne sees. Hydration, gut, and urinary signals become clear daily scores and long-term trends — no logging, no spreadsheets, no guesswork.
- Daily hydration score
- Gut and regularity patterns
- Urinary flow trends
- Private profiles for up to 6 people
The device
Throne One
A single discreet sensor that clips to your toilet and does the rest. Hands-free, easy to clean, and built to disappear into your bathroom.
- Clips on — no tools or plumbing
- About 30 days per charge
- Shared by up to 6 users
- Wipe-clean, water-resistant housing
Proof
Backed by science.
Trusted by members.
Doctors and members — in their own words.
Why would someone need this gut-health tracker?
Dr. Rajan · Gastroenterologist
Two weeks in, I'd already changed how I eat.
Daniel K.Throne member
I finally know what normal looks like for me.
Maya R.Throne member
Clinical perspective
Trusted by physicians and researchers.
Built on clinical rigor and reviewed by people who understand gut, urinary, and everyday health signals.
Clinical perspective
Dr. David Rubin
IBD researcher, University of Chicago
Dr. David Rubin is one of the world's foremost experts on inflammatory bowel disease and serves as Chief of Gastroenterology at the University of Chicago Medicine. He has dedicated his career to advancing early detection and prevention of serious GI disease.
Throne’s innovative approach holds great promise to empower patients and non-patients with knowledge about their health.
Clinical perspective
Dr. Suzelle Moffitt
Geriatrician and clinical advisor
Dr. Suzelle Moffitt has been practicing medicine since 1986. With nearly four decades at the intersection of clinical care, health law, and patient advocacy, she brings a whole-picture perspective to medicine and helped identify the practical need behind Throne.
When Scott first called me asking about health insights in people’s poop, I couldn't have imagined it would have ended up here.
Clinical perspective
Dr. Vipul Jairath
IBD researcher, Western University
Dr. Vipul Jairath holds the McDonald Endowed Chair in IBD Clinical Research at Western University and trained at Oxford. His work helps shape how digestive-disease therapies and clinical research outcomes are evaluated.
Throne has the potential to change IBD research by improving data collection methods and endpoints, especially compared to patient recall.
Clinical perspective
Dr. Satish Rao
Gut-motility researcher, Augusta University
Dr. Satish Rao holds the Harrison Distinguished Chair in Gastroenterology at Augusta University. He is a global authority on the gut-brain connection and digestive motility and has pioneered diagnostic techniques used worldwide.
Throne is potentially helpful for monitoring bowel symptoms in constipated patients over longer time frames.
Clinical perspective
Dr. Mark Pimentel
IBS and microbiome researcher, Cedars-Sinai
Dr. Mark Pimentel is Executive Director of the MAST Program at Cedars-Sinai. His research changed how IBS, gut bacteria, SIBO, and digestive symptoms are understood and measured.
Throne has the potential to both improve IBD patient care today and speed up valid clinical research in the coming years.
Privacy
The camera faces
down. Always.
It sees the bowl, nothing else. Your data is encrypted and never shared without your permission.
- Private and secure — the way it should be
- Never sold, never shared — the data is yours
What the sensor sees
FAQ
Questions, answered.
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How does it know how hydrated I am?
Throne's sensor reads your urine optically at every flush - the same concentration signal clinicians use - and turns each reading into a hydration score. Day after day, those readings become your trend.
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Is this gross?
No. You never see, touch, or handle anything. The sensor clips under the toilet rim, faces down into the bowl, and does its work automatically. It's wipe-clean and water-resistant.
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Does it work in a shared bathroom?
Yes - one device supports up to six people. Each person is recognized automatically when their phone is nearby, or with a press of their personal button, and every person's data is private to them.
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Can I share my data with my doctor?
Yes. You can export your data as a CSV or generate a 90-day report to bring to an appointment.
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Where do you ship?
Throne currently ships within the United States, and membership requires a U.S. billing address.
Get started
Know what your body's been trying to tell you.
Automatic hydration insights with every flush. No logging. No guessing. Just answers.