Stream Elite HRV data. No Elite HRV API needed.
Elite HRV writes your morning HRV, heart rate, and resting heart rate to Apple Health — and Sahha’s SDK reads them into your app as normalized biomarkers, alongside every other source.
- On-device
- Apple Health
- iOS
- HIPAA
- GDPR
Free for 30 days · No credit card
- HRV (SDNN)
- 62 ms
- Resting heart rate
- 54 bpm
- Heart rate
- 58 bpm
Identical schema across 500+ sources
Your users connect Elite HRV. Sahha does the rest.
This is your user’s side of the story — one screen, once. Sahha ingests every Elite HRV signal, normalizes, deduplicates, and delivers it to your service — raw, or as refined intelligence your product can act on.
A Allow "your app"
On-device and permissioned
Elite HRV data is read on the user’s own device, only after they grant Apple Health permission — nothing syncs without consent.
One integration, every source
Permission is per data type, not per brand. Anything that writes to Apple Health — Elite HRV today, a new watch next year — flows through the same SDK with no extra prompt and no new code.
What Elite HRV syncs through Apple Health.
Request only what you need
You choose exactly which of these signals to request from Apple Health — users are only ever prompted for those, which keeps opt-in rates high.
One schema, every source
Elite HRV, Apple Watch, and Oura all return the same fields and units.
What crosses the bridge
HRV, heart rate, and resting heart rate pass through Apple Health; some app-exclusive metrics may not.
Heart & vitals
3
HealthKitSahha- heartRateVariabilitySDNNheart_rate_variability_sdnnms
- heartRateheart_ratebpm
- restingHeartRateresting_heart_ratebpm
See a real payload
{
"type": "HKQuantityTypeIdentifierHeartRateVariabilitySDNN",
"value": 62,
"unit": "ms",
"startDate": "2026-06-03T06:40:00Z",
"sourceRevision": { "source": { "name": "Elite HRV" } }
// …heart rate & resting heart rate samples
}[
{
"category": "vitals",
"type": "heart_rate_variability_sdnn",
"value": 62,
"unit": "ms",
"periodicity": "spot",
"aggregation": "last",
"startDateTime": "2026-06-03T06:40:00Z",
"endDateTime": "2026-06-03T06:40:00Z"
}
]Elite HRV writes HRV (SDNN), heart rate, and resting heart rate to Apple Health from its Morning Readiness reading — a once-daily spot measurement, so later readings in the app aren’t pushed. It’s an iOS integration, so its data lands in Apple Health, not Health Connect.
Missing a metric you need? Talk to us in the Sahha Slack — if Elite HRV captures it, we can usually add support.
Get more than just raw data
Sahha turns these signals into biomarkers, scores, archetypes, and insights — the modeling done for you.
Reading Apple Health yourself? Here’s the to-do list.
Everything on the left is yours to write, test, and maintain on iOS. Everything on the right, Sahha already did.
- Integrate Apple Health.
- Handle iOS version differences.
- Add Health Connect separately for Android.
One SDK covers Apple Health, Health Connect, and every cloud source.
- Write the HealthKit queries.
- Request the right permissions.
- Wire up background delivery.
The SDK handles queries, permissions, and background sync.
- Dedupe apps writing the same metric.
- Map dozens of HealthKit types.
- Reconcile against your Android sources.
Deduped, typed, one schema — one stream per user.
- Build a sleep model.
- Build an activity model.
- Hire a data scientist.
Scores, archetypes, and insights — built in.
- Apple changes a HealthKit API.
- You find out in production.
We version the SDK. You never notice.
No Elite HRV developer account needed — Sahha reads what Elite HRV already writes to Apple Health on iOS.
Live in an afternoon, not a sprint.
- # Add the Sahha SDKnpm install sahha-react-native01
Add the Sahha SDK
Drop the Sahha SDK into your iOS app — or React Native or Flutter. The same SDK also covers Health Connect for your Android sources.
- A
Allow “your app”
ConnectSleepActivityHeart rate02Prompt for Apple Health permissions
Call the SDK to show the native Apple Health consent sheet. The user chooses what to share — under your brand. It’s one prompt, ever: permission is per data type, not per brand, so every future source is already covered.
- Your app LIVESleep7h 12mReadiness82Heart rate62 bpm03
Sahha reads and delivers
Once permission is granted, the SDK reads Elite HRV data from Apple Health in the background, normalizes it to one schema, and streams it to your app by webhook or API.
Most teams read live Elite HRV data the same day they add the SDK. The only per-source prerequisite: your user has Elite HRV’s Apple Health sync switched on — most source apps enable it by default.
Route it into your stack.
Sahha streams every update to your webhook — and a step-by-step guide takes it the rest of the way into your database, CDP, or messaging tool.
Elite HRV integration questions
How does Sahha get Elite HRV data?
Elite HRV writes your morning HRV and heart-rate readings to Apple Health, and Sahha reads them from there with its mobile SDK — no Elite HRV API to integrate.
Which Elite HRV metrics does Sahha provide?
HRV (SDNN), heart rate, and resting heart rate — normalized into Sahha’s schema. These come from the Morning Readiness reading, a once-daily spot measurement.
Does the Elite HRV integration work on Android?
Elite HRV writes to Apple Health on iOS, which is where Sahha reads it. Its Android app syncs resting heart rate to Google Fit rather than Health Connect, so Sahha reads it on iOS. The same SDK also reads Health Connect for your other sources.
Is the Elite HRV integration HIPAA and GDPR compliant?
Yes. Sahha is HIPAA and GDPR compliant and SOC 2 certified, and Elite HRV data flows through the same compliant pipeline as every other source.
One API for every other source, too.
Add another wearable or app and the schema, webhooks, and scores are identical — no new pipeline to build.
Start streaming Elite HRV data today.
Connect once. Sahha handles consent, normalization, and real-time delivery — for Elite HRV and every other source.
Free for 30 days · No credit card
- One API for Elite HRV and every other source
- Real-time webhooks + on-demand REST, one normalized schema
- Scores, archetypes & insights — no modeling required
- HIPAA, GDPR & SOC 2 · your brand on the consent screen