Throne
Clip it on and go like usual. It wakes up when you visit and reads the bowl, so there’s nothing to log.
- 30-day battery
- IP65 water-resistant
- Up to 6 private accounts
- Works across multiple bathrooms
Hydration, hands-free
Throne reads your urine color every time you pee, turns it into a hydration score and compares it with your normal. No logging. No nagging. No squinting.
- Works with every flush
- 30-day battery
- Up to 6 people
- Camera faces down. Always.
The pee check
The pee check works. Kind of.
Pale yellow good, dark yellow bad. You already know the chart. Here’s where it lets you down.
Throne does the color check for you at every visit, turns it into a hydration score and keeps count of how often you go.
You already pee. That’s the whole setup.
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1
Clip it on.
It fits on the toilet rim in seconds. No tools.
-
2
Go like usual.
Throne recognizes your phone over Bluetooth, or you press your button. Guests aren’t recorded.
- Hydration score (0–100)
- How often you go
- Time of day
- Nighttime visits
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3
Get your score.
A report card lands in the app before you’ve finished washing your hands.
What hydration science says
Hydration researchers don’t count glasses. They look at what comes out.
In one study, hydration researchers collected 24 hours of urine from 101 adults. Two simple signals, urine darker than pale yellow and fewer than seven bathroom trips a day, together flagged every adult in the study who was underhydrated. Those are the same two things Throne tracks: how concentrated your urine is at every visit, and how often you go.
100% of underhydrated adults were flagged by urine color + bathroom frequency.¹
Urine color above 3 on an 8-point chart, plus fewer than 7 bathroom trips in 24 hours.
¹ Adams JD, … Kavouras SA. Combining urine color and void number to assess hydration in adults and children. Eur J Clin Nutr. 2021;75:1262–66. n = 101 adults; underhydration defined as urine osmolality ≥800 mmol/kg.
The researchers are not affiliated with Throne and have not endorsed it. Throne is not the method used in this study. Read our research
In members’ words.
Shaun“I can see myself go from pretty low hydration to pretty high first thing in the morning. I might wake up 50, 60, 70, and then by 9am I’m like 99, 100. I’m like, okay, well, that’s working.”
Shannon“When that comes back and tells me, oh, your hydration status went down, I’m immediately reaching for my water bottle.”
Jacqueline“I’m really bad at drinking water, so this is a new way for me to stay hydrated, because I don’t want a bad hydration score on my Throne.”
Not thirsty isn’t the same as hydrated.
Your kidneys start holding on to water before you ever feel thirsty.¹ They do it with antidiuretic hormone (vasopressin), which is also why your urine gets darker.
Step 1
Water runs low.
Often before you notice you’re thirsty.
Step 2
Your body releases antidiuretic hormone.
When running low becomes your normal, vasopressin stays elevated. In another study, researchers found that raising vasopressin in healthy adults led to a larger blood-sugar response after a glucose drink,² and a 2021 research review links chronically elevated vasopressin to metabolic and kidney health.³
Step 3
Throne sees this
Your urine concentrates.
Concentrated urine is the visible sign of that hormone at work. It’s exactly what Throne measures.
¹ Thompson CJ, … Baylis PH. The osmotic thresholds for thirst and vasopressin release are similar in healthy man. Clin Sci. 1986;71:651–56.
² Jansen LT, … Kavouras SA. Osmotic stimulation of vasopressin acutely impairs glucose regulation: a counterbalanced, crossover trial. Am J Clin Nutr. 2019;110:1344–52. n = 60 healthy adults.
³ Perrier ET, … Kavouras SA, et al. Hydration for health hypothesis: a narrative review of supporting evidence. Eur J Nutr. 2021;60:1167–80.
There’s no magic number. There’s your number.
A gallon a day. Eight glasses. Half your body weight.
Most of these rules ignore your size, sweat, weather and food.
Throne builds your personal baseline from your own visits, then shows how each one compares: below your normal, near your normal or above it. Your baseline takes about two weeks of normal use to establish.
Hydrated, or just running water through?
Started drinking more and now you’re in the bathroom every 20 minutes? Throne puts your hydration score next to how often you’re going, so you can see whether all that water is actually moving the needle.
Below your normal
Your score trends down through the afternoon.
Fewer visits than usual, too.
Near your normal
Steady.
Your score and your visits are right where they usually are.
More dilute than your normal
Lots of visits, readings already well above your normal.
More water may not be changing much.
Throne shows patterns, not prescriptions. It won’t tell you how much to drink, and it isn’t a substitute for your clinician’s fluid guidance.
The 3 a.m. glass vs. the 4 a.m. pee.
Stop drinking two hours before bed? Add salt? Cut salt? Everyone has a theory. Throne counts nighttime visits automatically, so you can try one change for two weeks and see what actually happens for you.
Nights 1–7
Sleep like usual.
Throne records every overnight visit on its own, with nothing to log.
Night 8
Change one thing.
Note it in your Journal: “Last glass at 8 p.m.”
Nights 8–14
See what actually happened.
Compare the week before with the week after.
A pattern to explore, not a diagnosis. Frequent nighttime urination can have many causes. If it’s new or sudden, talk to your doctor.
No logging. No nagging. No streak to break.
| Throne | Water-tracking app | Smart bottle | Eyeballing it | |
|---|---|---|---|---|
| Something to remember | Nothing | Log every sip | Charge and sync | Look down |
| Measures | What your body put out | What you say you drank | What left one bottle | A guess |
| Compares to your normal | Yes | No | No | No |
| Shows when you’re already fine | Yes | No | No | Sort of |
| Frequency and nighttime | Yes | No | No | No |
| Pings you to drink | Never | Constantly | Constantly | Never |
Keep the bottle you love. Throne works with whatever you drink from.
Built for people who actually think about this.
Thirst doesn’t send the memo.
ADHD brain, deep-focus job, or just never thirsty. Get a signal you don’t have to remember to check.
Up at night, or always looking for a bathroom.
See your frequency and overnight visits next to your hydration, then test changes yourself.
Told to keep your fluids up.
If a clinician has asked you to watch your water, Throne gives you a simple daily record to bring to your next appointment.
Sweat days and desk days.
Construction site, kitchen, mail route or long run: your needs change daily. Your readings will too.
The whole household.
Up to 6 private accounts on one device.
Throne is a general wellness product. It does not detect, diagnose or prevent any condition.
The sensor faces down. Always.
It sees the bowl, nothing else. Your data is encrypted, and your health information is never shared without your permission.
Guests stay private. Without a recognized phone or a button press, Throne won’t record.
See exactly what Throne seesStart knowing.
Membership
$6/month per person. First 3 months included. Up to 6 people on one device, each with a private account.
- Hydration score and personal baseline
- Frequency and nighttime trends
- Gut Health Coach
- Journal
- 90-day report export
Throne
$399 + $6/month per person, first 3 months included
- 30-day money-back guarantee
- Free shipping
- 2-year warranty
- Save up to 30% with HSA/FSA
- Pay over time
Questions, answered.
More questionsDo vitamins or supplements affect my score?
Yes, and we’d rather you hear it from us. B vitamins, especially riboflavin (B2), turn urine bright yellow and can make your hydration score read lower than it should.
How is the hydration score calculated?
Throne’s camera reads your urine color at each visit, estimates urine concentration from it, and converts that to a 0–100 score compared with your personal baseline.
Does it tell me how much water to drink?
No. It shows how your readings compare with your normal. Talk to a clinician for personal fluid targets.
Does it count bathroom trips when I’m not home?
Only visits at a Throne-equipped toilet are automatic. You can log others manually in the app.
Does it measure electrolytes?
No.
How long until my baseline is ready?
About two weeks of normal use.
How does Throne know it’s me and not a guest?
It recognizes your phone over Bluetooth, or you press your assigned button. If it doesn’t recognize you, it doesn’t record.
Can my partner or family use it?
Yes. One device supports up to 6 private accounts, and each person needs their own membership.
What does the membership include? Can I cancel?
Membership is $6/month per person, and your first 3 months are included. It covers your hydration score and personal baseline, frequency and nighttime trends, Gut Health Coach, your Journal and 90-day report export. Cancel anytime. When your membership ends, you can no longer use the Throne app.
Is it HSA/FSA eligible?
Yes. Pay with eligible HSA/FSA funds through Truemed at checkout and save up to 30%.
Does it track gut health too?
Yes. Throne also records the form, frequency and timing of every bowel movement. See how Throne tracks gut health.
Know, don’t guess.
Try Throne with a 30-day money-back guarantee.
Get Throne- Save up to 30% with HSA/FSA
- Pay over time
- 30-day money-back guarantee
Throne is a general wellness product intended to provide insights into hydration and gut health. It is not intended to diagnose, treat, cure or prevent any disease. Consult a qualified healthcare professional for medical advice. Research cited on this page was conducted independently of Throne; cited researchers are not affiliated with and have not endorsed Throne.