Short answer: use the official Honor Health app for full device features; for broader ecosystem sync add Google’s Health Connect (Android) or Apple Health (iPhone) plus one of the common sync bridges (Health Sync / third‑party sync services) so you can push workouts to Strava, MyFitnessPal, etc. If you want a lightweight tracker-only app, third‑party companion apps like GloryFit are sometimes used with basic bands — but expect reduced features and manual workarounds. (apps.Apple.com)

What to use (by goal)

• Best for full device features and updates: Honor Health (official companion app). This gives the most complete access to watch settings, sleep/HR/SpO2 graphs, workout records and firmware updates. (apps.Apple.com)
• Best if you want to aggregate data across apps (Android): Health Connect (Google) — lets multiple fitness apps share steps, workouts, weight and sleep so you can centralize data and forward it to other services. Use Health Connect + an app that writes/reads to it. (en.wikipedia.org)
• Best for syncing workouts to social/athlete platforms (Strava, etc.):
  • Ideally use Honor Health if it offers a Data Sharing / export to the service for your specific model. Some Honor/Huawei watches historically required Huawei Health to get Strava sync; compatibility is inconsistent across models and app versions. Check the Honor Health app’s Data Sharing settings. If native sync is missing, use a sync bridge (see below). (apps.Apple.com)
• Best for iPhone users: Honor Health + Apple Health integration (Honor Health can write to HealthKit for iOS). From there many apps can read that data. (apps.Apple.com)
• Quick/cheap companion alternatives: GloryFit and similar third‑party companion apps are sometimes used with bands for basic tracking and HealthKit/Google Fit export — useful if your device is supported but expect limited features and less reliable sync. (apps.Apple.com)

Practical sync-workarounds (if Honor Health won’t talk to the service you want)

• Check Honor Health first for a built‑in Data Sharing option (Strava, Apple Health, Google Fit/Health Connect). Some users report it exists; others report their model doesn’t expose it — results vary by model and app version. (apps.Apple.com)
• If native export is missing on Android: install Health Connect and use an app that writes Honor data to Health Connect (or use a third‑party bridge like “Health Sync” / FitnessSyncer to move data from Honor/Huawei/Honor Health to Strava/MyFitnessPal/Google Fit). (Availability and reliability differ by device.) (en.wikipedia.org)
• If you’re running into model-specific problems: some owners reinstalled Huawei Health (older workflow when Honor was tied to Huawei) or waited for an Honor Health update — community reports show occasional fixes via app/firmware updates. Expect variability and check Honor’s support notes for your watch model. (reddit.com)

Which apps to try first (install in this order)

1. Honor Health (official) — always install first. Verify device pairing and look through Settings → Data Sharing / Privacy. (apps.Apple.com)
2. If on Android: Health Connect (Google) — install and enable permissions so other apps can read/write. (en.wikipedia.org)
3. Strava / MyFitnessPal / Google Fit / Apple Health — connect these inside the app that offers data sharing or use a bridge app. (apps.Apple.com)
4. If needed: Health Sync, FitnessSyncer, or similar third‑party sync tools (search for the name + “Honor” + your model) — these can bridge platform gaps but may require subscriptions. (hdor.com)

Heads up / limitations

• Honor’s ecosystem split from Huawei means compatibility that existed in the past (Huawei Health → Strava) may not hold for newer Honor models. Many users report inconsistent Strava support across Honor models and app versions — check current app permissions and recent user threads for your exact model. (techradar.com)
• Third‑party apps (GloryFit, etc.) often provide only basic metrics and can be less reliable than the official app. (apps.Apple.com)

If you tell me your exact Honor model (example: Honor Band 9, Honor Watch GS 4, Honor Choice Watch, Honor Watch 4) and whether you use Android or iPhone, I’ll give step‑by‑step instructions for setting up the best sync path (which app to install first, where to enable data sharing, and which bridge to use if necessary).