How to Use the Withings Connector in Muse

What is the short answer?

As of October 25, 2026, Withings is a live connector in Muse. It has been live since launch day, September 8, 2026, and it was still counted among the 54 connectors in the web app in the October 15 in app check, with about 58 to 60 live in total, counting phone only connectors, and 18 announced but not live. The October 7 update brought the iPad app and an expanded connector list, and Muse launched in Japan on October 23, so Muse is now available in the United States, Canada, and Japan.

Here is the quotable answer. Connect Withings and your daily weigh ins turn into trends Muse can explain: weight, body composition, heart rate, and what actually changed this month. Withings makes smart scales that measure far more than weight, including fat mass, muscle mass, bone mass, water percentage, BMI, visceral fat, heart rate, vascular age, and nerve health, and the numbers sync to the Health Mate app over WiFi or Bluetooth. The connector is supposed to bring those numbers into Muse so you can ask what they mean instead of staring at a chart alone.

Here is the honest version, and it matters. Meta has not published a detailed list of what the Withings connector can read inside Muse, so the uses in this guide are the reasonable ones to try first, not promises. We could not verify in October whether Muse can see your weigh in history, your trends, or readings from other Withings devices like watches, or whether it only sees the scale. Test every use below with a small request first, check the answer against the Health Mate app, and trust only what you have seen work with your own account. The rest of this guide covers how to connect it, which numbers matter, and what the scale can and cannot tell you.

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What do you need?

• Muse access. You need an account with access first, in the United States, Canada, or Japan, where Muse has launched.
• A Withings account and at least one device. The connector reads your Withings data, so you need a scale set up in the Health Mate app, with a few weeks of weigh ins already in it. A brand new scale with no history gives Muse nothing to trend.
• One person per profile. Withings scales support several user profiles, up to 8 on some models, and each person gets their own readings. Connect the profile that is yours, and keep other household members on their own profiles.
• Your goal in plain words. What you want from the numbers this month: steady weight loss, more muscle, better sleep, or just knowing where you stand. One clear goal beats ten vague ones.
• Approvals set to ask me. Before you connect anything, set approvals so nothing is shared or sent without your tap. This is the single most important step on this page.

How do you connect it, step by step?

The connection itself takes a few minutes once your scale is already syncing. The verification around it matters more, because the connector details are not published, so run the steps in order and test before you trust it.

1. Set up the scale in the Health Mate app first. Weigh in for at least two weeks before you connect Muse, so there is a trend to read. Check that the scale syncs over WiFi or Bluetooth and that your readings appear in the app.
2. Open Muse and go to Settings. The connectors list lives there. What is printed there is what your account has, because rollout is staged and two accounts can see different lists on the same day.
3. Find Withings in the connectors list and open it. If Withings is not listed, your account has not received it yet. There is nothing to install and nothing you broke. Check again in a few days.
4. Sign in with your Withings account. Use the account where your scale data lives. If your household shares a scale, sign in with your own profile, because Muse should see your readings, not someone else in the house.
5. Grant the access Muse asks for. Read the permission screen before you accept it. If a scope surprises you, stop and check what it covers before continuing.
6. Set approvals to ask me. In Muse settings, set approvals so that sharing health data always waits for you. This is what stops Muse from ever sharing your readings without your say.
7. Test with a read only request. Ask Muse for your weight trend over the last 14 days. Read the answer against the Health Mate app. If it matches, the connector can see your history. If it cannot answer, it may only be able to talk about Withings in general, and you should plan around that.

Copy this prompt

You are my health numbers assistant. Use my Withings connector only.
Rules: you never share my health data with anyone without my explicit approval. You read, summarize, and explain. I approve every share.
My goal: [what I want this month, e.g. lose weight slowly while keeping muscle]
My routine: [how often I weigh in, and what time of day]
Every Sunday, do this in order.
1. Summarize my week: weight trend, not single day numbers, and what changed.
2. Tell me what the change probably means, and what it does not prove.
3. Flag any reading that looks wrong, like a sudden jump, and tell me why it may be wrong.
4. Suggest one small change for next week, not a whole new routine.
5. End with the one number to watch this week, and nothing else to worry about.

What does it actually do?

The connector earns its place with five uses. Everything else is a variation on one of them. Each use below starts with a test, because the connector details are not published, and a use you have tested beats a use you assumed. Our complete connectors list tracks which connectors are live now and which are only announced, so check there if a connector you want is missing from your settings.

Why do trends beat single day numbers?

Ask Muse for your weight trend over the last 14 days, not the number from this morning. This is the highest value use, because a single weigh in is mostly noise: water, food, sleep, and the time of day can move the scale by more than a week of real progress. A trend over two weeks tells you what is actually happening, and Muse is good at saying it in plain words: up a little, down a little, or flat. Ask for the trend every Sunday, at the same time, and stop weighing the meaning of each morning. If the connector cannot see your history yet, the answer will be generic, and you will know at once from the test in step 7. A generic answer about weight trends is still useful, but it is not your trend, and you should not pay it the trust your own numbers earn.

What do the other numbers mean?

Ask Muse to explain the numbers beyond weight: fat mass, muscle mass, water percentage, BMI, visceral fat, heart rate, and vascular age. Most people look at these numbers once, feel confused, and never look again, which wastes the best part of a smart scale. A plain words explanation helps: muscle going up while weight stays flat can still be progress, and a sudden jump in water after a salty meal is not fat gained overnight. Ask about one number at a time, and ask what would make it move in the direction you want. Keep the skepticism too: body composition from a scale is an estimate, not a lab measurement, and the trend matters far more than any single reading. If Muse cannot see these numbers through the connector, ask it to explain the numbers you read out from the Health Mate app, which works just as well.

How do you spot a reading that is wrong?

Ask Muse to flag any reading that looks wrong, like a sudden jump of two kilos in a day, or a heart rate far from your usual. Scales misread: wet feet, a moved scale, a weigh in right after a meal, or someone else in the house stepping on it by mistake. A flagged reading saves you a week of worry over a number that was never real, and it teaches you the habit that matters most with health data, which is to ask whether the number is real before you react to it. Tell Muse your usual range and the time you weigh in, so the flag has something to compare against. A scale that moves around the house will read differently in each spot, so keep it in one place, on a hard floor, and weigh in at the same time each day.

What does a two minute weekly check in look like?

Ask Muse every Sunday for the week in five lines: the trend, the one number that moved, the one reading to ignore, one small change for next week, and the one number to watch. This is the use that turns a scale into a habit, because a two minute check in you actually do beats a deep review you keep putting off. Keep the change small: one extra walk, one less late snack, water before coffee, or a consistent weigh in time. Small changes are easy to keep, and kept changes are what move a trend over months. If you also track workouts, our Peloton connector guide covers that half, and our HealthEx connector guide covers health records, so Muse can see the workout, the weight, and the clinic visit together.

How do you share numbers with your doctor?

Ask Muse to put together a short summary of your trends to take to a visit: weight over three months, heart rate at weigh in, and any pattern worth mentioning. A doctor gets more from a trend than from a single number you remember, and a short written summary saves the visit from guesswork. You choose what goes in the summary, and you read it before it leaves your hands. Nothing here is medical advice, and a trend that worries you belongs in a real conversation with a doctor, not in a chat. The summary is a starting point for that conversation, and it is a good one, because it is built from your own readings over time.

What can it not do?

The limits are honest and worth knowing before you lean on the connector. The first limit is the one this whole guide keeps repeating, because it shapes everything else.

• It cannot promise what Meta has not published. We could not verify in October whether Muse can see your weigh in history, your trends, or readings from other Withings devices like watches, or whether it only sees the scale. Treat every use above as a test, and trust only what you have seen work with your own account.
• It cannot diagnose you or give medical advice. A scale reading, even a worrying one, is not a diagnosis, and a trend Muse explains is not a treatment plan. Any worry about a number belongs in a real conversation with a doctor.
• It cannot fix a bad reading. If the scale misread because of wet feet, a moved scale, or the wrong profile, Muse will reason from the wrong number. Check any reading that surprises you against a second weigh in before you act on it.
• It cannot tell whose reading it is if profiles are mixed up. A shared scale with mixed profiles gives Muse mixed data, and the trends it reports will be wrong for everyone. Keep each person on their own profile, and check the profile after any odd reading.
• It cannot share your health data safely for you. The sharing choices are yours to make, and a broad share made in a hurry is hard to undo in hindsight. Keep approvals on ask me for anything that shares your readings outside this chat.

What should you watch for?

As of October 25, 2026, Withings is a settled connector in the list: live since September 8, still listed in the October 15 in app check, and part of a web app count of 54 connectors. There is no October change to how it works, so the habits around it still matter. Check every trend against the Health Mate app for the first month, especially any number that surprises you. A wrong reading acted on fast is worse than a slow read you verified, and a diet changed on a misread scale is a month lost.

Watch for the daily number trap. Weighing in every day is fine, but reacting to every day is not, and the people who quit scales usually quit because a normal daily swing felt like failure. Judge the week, not the morning, and let the Sunday trend be the only verdict that counts. If daily numbers stress you out, weigh in twice a week instead and let the trend do the talking. The scale is a tool, and a tool that makes you feel worse every morning is a tool used wrong.

Check your data controls. In Muse settings, open Data controls and look at the switch for helping improve the models. If you do not want your chats used for training, turn it off before you start asking Muse to read your health numbers. That switch controls whether Meta may use your chats to train future models.

Finally, remember the rollout is staged. Your account may see a different connector list from a friend in the same city on the same day, and a use that works for them may not work for you yet. That is normal for a launch this young, and it is not a thing you broke. Check your own settings, test with a small request, and build the habit on what your account can actually do today.

How do you get started?

Frequently asked questions

Can Muse see my Withings weigh in history?

That is what the connector is for, but we could not verify the details in October. Ask Muse for your weight trend over the last 14 days and check the answer against the Health Mate app before you trust it.

Which Withings devices work with the connector?

We could not verify this in October. The scale is the main device, and Withings also makes watches that track sleep and activity. Test with your own account to see which devices Muse can see.

Can Muse explain my body composition numbers?

Yes, as plain words explanations. Ask about one number at a time, like fat mass or muscle mass, and what would move it. Remember the scale gives estimates, so the trend matters more than any single reading.

We share one scale at home. Is that a problem?

It can be, if profiles get mixed up. Keep each person on their own profile, up to 8 on some models, and check the profile after any odd reading. Mixed profiles give Muse mixed data.

Can I use the Withings connector outside the United States, Canada, and Japan?

Not yet. Muse itself has launched in the United States, Canada, and Japan only. Join the waitlist and we will send you a fresh code on launch day in your country.

What happens if I disconnect Withings?

Muse loses access to your scale data. Your readings stay in the Health Mate app, and nothing Muse summarized is shared after you disconnect. You can reconnect the same account later.

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