By Orion Voss

Updated 2026-09-11

Noise Smartwatch + Apple Health: NoiseFit Syncs Heart Rate, Here Is How to Check It

70 BPM does not measure heart rate; it reads what NoiseFit has already written into Apple Health and lines it up with your calendar. So the useful question for Noise owners is not “is it compatible” but “what exactly does NoiseFit send, and how much of the day does it cover?” Everything below comes from Noise’s own support documentation, linked where quoted.

What NoiseFit writes to Apple Health

The heart-rate line on Noise’s official page reads, verbatim: “Apple health: ... Your Heart rate, Sports and Sleep data will be synced to Apple health.” (NoiseFit: Health & Fitness on the App Store (developer listing, v5.4.0)).

The full export list on that page:

• Heart rate
• Sports
• Sleep

The question that decides everything: does it cover the whole day?

Full-day heart rate: not documented by the maker. Noise lists “Heart rate” separately from “Sports”, which suggests heart rate beyond workouts is sent — but Noise does not say all-day or periodic anywhere, so we will not. After a day of wear, the check below tells you what you actually have.

How to connect NoiseFit to Apple Health

Noise publishes no Apple Health setup article on its support site. What is officially established:

1. NoiseFit runs on iPhone (iOS 17 or later).
2. The developer’s App Store text states heart rate, sports and sleep data will be synced to Apple Health.
3. Look for the Apple Health option in NoiseFit’s settings, then confirm NoiseFit appears under Health › your profile › Apps, with Heart Rate turned on.

Noise ships several companion apps (NoiseFit Assist, NoiseFit Sync, NoiseFit Prime and others). Only the main “NoiseFit: Health & Fitness” listing carries the heart-rate statement; check which app your watch uses.

Once connected, open 70 BPM, grant it Apple Health read access for heart rate, and the samples NoiseFit has written appear on the day chart against your calendar events. 70 BPM shows every heart-rate sample in Apple Health, whichever device wrote it — it never filters by brand.

If Noise data is not showing up

Which NoiseFit app you have matters

Noise’s watches use different companion apps. The heart-rate sync statement is on the main NoiseFit listing only.

Support site does not cover Apple Health

Noise’s support articles reference Google Fit; a search for Apple Health returns nothing. The App Store listing is the only official source.

How to check what you are actually getting

Open Apple Health › Browse › Heart › Heart Rate and switch to the day view. Readings scattered across an ordinary day mean all-day samples are arriving; readings clustered only into workout blocks mean you are getting session data only. Under the same screen, Data Sources & Access shows which app is writing. This check reflects your actual device, firmware and settings, and beats any compatibility page — including this one.

For how Noise compares with other watches and rings, see Which smartwatches work with Apple Health.

This article reflects Noise’s published documentation as read in September 2026. Sync behaviour changes; check the linked support page before relying on it. 70 BPM is not a medical device and does not diagnose anything.

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