Logging My Weight to Apple Health from Home Assistant

Q: Which metrics can be written back to Apple Health?

Health Assistant Link's two-way sync can write supported metrics from Home Assistant into Apple Health. Weight is one example; more Home Assistant sensors can be fed into Apple Health the same way.

Health Assistant Link 4 July 2026 2 min read

I’ve been trying to get all of my health data into Apple Health, regardless of where it comes from. My scales report weight into Home Assistant, but not into Apple Health — so instead of replacing them, I used two-way sync to send the data across.

I’ve been trying to get all of my health data into Apple Health, regardless of where it comes from. My scales report weight into Home Assistant, but not into Apple Health. Rather than replacing the scales, I decided to send the data across instead.

Now, whenever I step on the scales, Home Assistant receives the new weight reading and writes it into Apple Health automatically. It means I still get all of the graphs and trends in Apple Health, while Home Assistant remains the place that all of my devices connect to.

Why I prefer this approach

I’ve started preferring this over buying devices purely because they support Apple Health. If a device integrates well with Home Assistant, I can usually work with that — and then push whatever I need into Apple Health.

Using two-way sync in Health Assistant Link

For this setup I’m using the new two-way sync in Health Assistant Link. It can now write supported metrics from Home Assistant back into Apple Health, so weight was the first thing I connected.

Next on the list is getting a few more sensors feeding data into Apple Health the same way.

Frequently asked questions

Can Home Assistant write data back to Apple Health?

Yes. With the two-way sync in Health Assistant Link, Home Assistant can write supported metrics back into Apple Health. Here, a weight reading that arrives in Home Assistant is written into Apple Health automatically.

How do I log weight to Apple Health from Home Assistant?

Have your scales report weight into Home Assistant as an entity, then use Health Assistant Link’s two-way sync to write that value back to Apple Health. Each new reading in Home Assistant is sent across automatically.

Do I need Apple Health-compatible devices?

Not necessarily. If a device integrates well with Home Assistant, you can push its data into Apple Health via two-way sync — so you can choose devices for their Home Assistant support rather than only for native Apple Health compatibility.

Which metrics can be written back to Apple Health?

Two-way sync can write supported metrics from Home Assistant into Apple Health. Weight is one example; more Home Assistant sensors can be fed into Apple Health the same way.

Want to sync your own Home Assistant data with Apple Health?

Get started Download iOS App

← All stories