Withings supports Apple Health export: in the Withings app, go to Profile, Settings, then Export health data to Apple Health. Two catches: Withings states the sync is not automatic, so open Withings, then Apple Health, return and swipe down on Home; and for accounts created from October 13, 2026, automatic third-party sync is part of Withings+.
Trendline is an iPhone app that reads Apple Health. Everything below assumes an iPhone; the destination for your readings is Apple Health, which Android does not run.
Why premium-scale owners end up on this page
Withings owners rarely arrive here because sync is broken. They arrive because of the graph. When Withings redesigned its app in 2022, a long-running thread formed on r/withings from owners who could no longer see weight, body fat, and muscle mass on one screen and found the weight chart's resolution visibly reduced — individual weigh-ins folded into a coarser line. That is a historical complaint from 2022, and we have not re-tested the current app; the complaints were about presentation choices, not hardware. Withings also offers Withings+, a paid membership that adds services on top of the app. The practical point: if you want your Body-series readings presented differently than the Withings app presents them, the exit is Apple Health, and Withings documents that exit. One rule changed in October 2026 and is covered next.
New accounts: automatic sync is part of Withings+
Withings' export article now opens with a disclaimer: any account created after October 13, 2026 will be asked to sign up for a Withings+ subscription to export data to third-party apps like Apple Health, and accounts that existed before that date are not affected (Withings: Exporting Withings data into Apple Health). A Withings staff reply in the community thread on the change says the same: accounts created on or before October 12, 2026 keep free automatic sync, tied to the account rather than the device; for accounts created from October 13, 2026, automatic sync to third-party apps is part of Withings+, with a free trial; if a membership ends, sync pauses and no data is lost. Withings also says every user can export their full history as CSV or PDF without a membership. We have not seen Withings state a price for the membership on its own pages, so we give none. If you are unsure which side of the date your account is on, Withings invites you to contact its support team.
Turning the export on
Withings documents the path in its own support center (Exporting Withings data into Apple Health):
Open the Withings app and go to your Profile.
Tap Settings (the gear icon), then Export health data to Apple Health.
Tap through the Apple Health connection prompts, toggle on the categories you want synced, then tap Allow and Done.
Turning all relevant categories on at this step is the whole setup. (Older Withings articles describe a slightly different menu arrangement; the steps above are the vendor's current published version as of the review date.)
The refresh catch, in the vendor's own words
Here is the part that generates many "Withings not syncing to Apple Health" searches, and Withings presents it as expected behavior, not a bug. Withings states that "the syncing of data to and from Apple Health is not automatic," attributing this to an iOS restriction (vendor doc). The documented ritual: open the Withings app, open Apple Health, then return to the Withings app and swipe down on the Home tab to force a refresh — and the vendor notes these steps apply each time you want the latest readings reflected. Its troubleshooting article adds that a sync can lag by a quarter-hour or so after a measurement, and walks the permission check: iPhone Settings → Apps → Health → Data Access & Devices → Withings, with write permissions enabled (Data Synchronization Issues; see also the companion troubleshooting page).
Two practical consequences, offered as our reading of the vendor's documentation rather than anything Withings promises: first, keep Background App Refresh enabled for the Withings app (iPhone Settings → Apps → Withings) so iOS permits the app to do work when it isn't on screen; second, build the habit of opening the Withings app after weigh-ins you care about. Scale-to-Withings and Withings-to-Apple-Health are separate hops: the vendor's own check for the first is your account's web dashboard, and its remedy for the second is the app-open refresh above.
What syncs — and what stays behind
Withings publishes the list of categories that can be shared with Apple Health (What is Apple Health?). For a Body-series scale, the relevant entries are weight, body fat percentage, BMI, height, and lean body mass (heart rate too, on models that measure it). Absent from the vendor's list: muscle mass as its own line, body water, bone mass, and visceral fat. For most of those, the limit is Apple's, not Withings' — Apple Health simply has no data types for body water, bone mass, or visceral fat, a boundary every scale brand hits identically. Those readings remain viewable in the Withings app only.
And the boundary no vendor states for you: readings flow from the day you enable the export, forward. Withings does not document whether past readings transfer to Apple Health when you first toggle it on — so we don't claim it. (In the reverse direction, importing into the Withings app, the vendor does describe limits on how much history moves; the export direction is simply undocumented.) If years of Withings history matter to you, check Apple Health after enabling rather than assuming.
What lands where
| What Withings writes to Apple Health | What Apple Health can store | What Trendline reads from Health |
|---|---|---|
| Weight, body fat %, BMI, height, lean body mass — per the vendor's shareable-categories list (plus heart rate and other measures from other Withings devices). Muscle mass, body water, bone mass, and visceral fat stay in the Withings app. | Weight, BMI, body fat %, lean body mass, height, waist circumference. No types exist for body water, bone mass, or visceral fat. | Weight, body fat %, and lean body mass (height as context). BMI and waist are not imported — BMI is derivable, and neither carries trend information Trendline needs. |
Trendline also accepts manual entries — including composition values Apple Health has no type for, like body water and visceral fat — so the readings Withings can't export can still sit alongside your trend.
Withings not syncing to Apple Health anyway?
Working from the vendor's troubleshooting doc, cheapest step first: give a fresh measurement at least the fifteen-minute delay Withings itself allows for; run the open-both-apps-and-pull-down refresh described above; confirm the reading reached Withings' servers by checking your account's web dashboard; then re-verify write permissions in iPhone Settings → Apps → Health → Data Access & Devices. If the Apple Health option is missing from your profile entirely, Withings' suggestion is a device restart (vendor doc).
Try the idea
Once your weigh-ins are landing in Apple Health, the question becomes what reads them well — which is where that r/withings thread started. Paste a few weeks of measurements into the free weight trend calculator — it runs in your browser, nothing uploads — and compare your raw series against a deliberately slower signal that one salty dinner can't yank around. If the folded-average graph frustrated you, this contrast is the alternative, with the math public.
Questions people ask
Do I need Withings+ to sync to Apple Health?
It depends on when you created your account. Withings says accounts created on or before October 12, 2026 keep free automatic sync, and accounts created from October 13, 2026 get automatic third-party sync as part of Withings+, with a free trial. If a membership ends, sync pauses and no data is lost. Every user can export a CSV or PDF of their history without a membership. If you are unsure of your account's status, Withings asks you to contact its support team.
How do I export Withings data to Apple Health?
Open the Withings app and go to your Profile. Tap Settings (the gear icon), then Export health data to Apple Health. Tap through the Apple Health connection prompts, toggle on the categories you want synced, then tap Allow and Done.
Why is my Withings scale not syncing to Apple Health?
Withings states that "the syncing of data to and from Apple Health is not automatic." Open the Withings app, open Apple Health, then return to the Withings app and swipe down on the Home tab. Its troubleshooting article adds that a sync can lag by a quarter-hour or so after a measurement. If the Apple Health option is missing from your profile, Withings suggests restarting the device; also re-check write permissions in iPhone Settings, Apps, Health, Data Access & Devices, Withings.
Which Withings measurements go to Apple Health?
For a Body-series scale, weight, body fat percentage, BMI, height, and lean body mass, per the vendor's list of shareable categories. Muscle mass as its own line, body water, bone mass, and visceral fat stay in the Withings app.
Will my old Withings history appear in Apple Health?
Withings does not document whether past readings transfer when you first toggle the export on, so check Apple Health after enabling rather than assuming.
Sources
- Withings: Exporting Withings data into Apple Health
- Withings: Importing Apple Health data (documents the non-automatic sync and forced-refresh steps)
- Withings: Apple Health data synchronization issues
- Withings: I'm having an issue syncing with Apple Health
- Withings: What is Apple Health? (shareable data categories)
- r/withings: "New app update awful" (2022 redesign thread)
- Withings Support community: official reply on third-party sync for accounts created from October 13, 2026
Trendline is not affiliated with or endorsed by Withings. Vendor behaviors change; this page states what was verifiable against the sources above on October 18, 2026.