Google Health vs Apple Health vs Health Connect (2026): What Syncs and How

Your phone and wearables collect a lot of health data: steps, heart rate, sleep, HRV, blood oxygen and more. Where that data lives decides which apps can use it. In 2026 there are three names to keep straight: Apple Health (iPhone), Health Connect (Android) and Google Health (the renamed Fitbit app, on both).

Google Health vs Apple Health vs Health Connect: What's the Difference?

Google Health or Apple Health: Which Should You Use?

On an iPhone you no longer have to pick one. Since August 2026 the two sync, so the practical choice is which app you open every day and which one holds your long-term record.

• Use Apple Health as your main record if you wear an Apple Watch, want everything stored on your iPhone, or want your health records from participating providers in the same place. It is free and has no subscription tier.
• Use Google Health as your main app if you wear a Fitbit or Pixel Watch, want AI coaching (the Gemini coach comes with Google Health Premium, from $9.99/month), or move between iPhone and Android.
• Use both if you own devices from each side. Turn on the sync below and set a source order in Apple Health so steps and sleep are not counted twice.
• On Android Apple Health is not available, so the choice is Google Health for the app and Health Connect as the layer that shares data between apps.

Does Google Health Sync With Apple Health?

Yes. For years Fitbit had no native Apple Health sync, and iPhone users relied on third-party bridge apps. That changed on August 3, 2026, when Google Health version 5.05 for iPhone added two-way Apple Health sync.

How to sync Google Health to Apple Health (iPhone)

1. Update the Google Health app to version 5.05 or later.
2. Tap Connections → Apps and services, then under "Add connections" tap Apple Health and Get started.
3. On the "Sync Google Health with Apple Health" page tap Agree, then tap Turn All Categories On or tick specific categories and tap Allow. Tap Done. If a "New data types available" alert appears later, review and grant permissions for the new types.
4. The same connection also brings Apple Health data, including Apple Watch data, into Google Health.

Avoid double-counting: if you wear both an Apple Watch and a Fitbit, set the source order in the Health app (Browse → a data type → Data Sources & Access → Edit). Apple Health then knows which device wins when both record steps or sleep.

Requirements and limits: you need an iPhone on iOS 16.4 or later. Google Health reads and shows the last three months of your Apple Health history, not everything older. If you reinstall the app you have to reconnect and grant the permissions again.

What about Android?

On Android, Google Health uses Health Connect, so anything it records is available to other Health Connect apps such as Samsung Health or UltraFit360, once you grant permission. Google documents Connections → Partner apps only for this Health Connect connection on Android, not for Apple Health. Apple Health doesn't exist on Android, so there is still no direct Apple Health ↔ Android sync.

Apple Health vs Google Fit: Is Google Fit Still an Option?

Not for long. In May 2026 Google said Google Fit will shut down and be replaced by the Google Health app by the end of 2026, with a tool to move your Fit data across. The Google Fit developer APIs also reach end of service in 2026, and Health Connect has taken over as the way Android apps share health data.

So the comparison that matters now is Apple Health against Google Health and Health Connect, covered above. If you still have years of history in Google Fit, export a copy through Google Takeout before the shutdown so nothing depends on the migration going smoothly.

What is Apple Health?

Apple Health (previously HealthKit) is Apple's centralised health data platform on iPhone. It acts as a hub — collecting data from your Apple Watch, third-party apps, and manual entries into one unified health record.

• Built into every iPhone (iOS 8+)
• Deep integration with Apple Watch for continuous monitoring
• Supports over 100 health data types
• On-device processing — data stays on your phone by default
• Third-party apps can read AND write data (with user permission)

What is Google Health Connect?

Health Connect is Google's on-device health data hub for Android. It replaced Google Fit's data APIs, launched as a standalone app in 2022 and became built into Android 14+. It isn't the same as the Google Health app, which is a consumer app that uses Health Connect on Android.

• Available on Android 9+ (as an app) and built into Android 14+
• Works with Wear OS, Samsung Galaxy Watch, Fitbit, and other Android wearables
• Supports over 80 health data types
• Granular permission controls per data type
• Third-party apps can read AND write data (with user permission)

Data Type Comparison

Apple Health vs Health Connect: Core Differences in 2026

As we navigate 2026, the gap between Apple Health and Health Connect has closed significantly, but core differences remain:

• Ecosystem Lock-in: Apple Health is bound to iOS and the Apple Watch ecosystem. Health Connect is shared across Android, so apps such as Google Health (Fitbit), Samsung Health and many third-party trackers can write to the same on-device database.
• API Accessibility: Health Connect provides a more streamlined API for developers, making it easier for third-party apps to integrate quickly.
• Cloud Syncing: Apple Health syncs seamlessly across your iCloud-connected devices (iPad, Mac). Health Connect is primarily device-bound, though Google One backups can restore it.

Pros and Cons: Ecosystem Breakdown

Wearable Compatibility Guide (2026)

Which wearables work best with which platform? Here is the current landscape:

• Apple Watch: Exclusive to Apple Health. The deepest integration available on iOS.
• Samsung Galaxy Watch & Pixel Watch (Wear OS): Native, deep integration with Health Connect.
• Fitbit and Pixel Watch (Google Health app): Write to Health Connect on Android and, since August 2026, sync two-way with Apple Health on iPhone.
• Garmin, Oura Ring and WHOOP: Each publishes data lists for both Apple Health and Health Connect; Garmin's sharing is one-way. COROS documents Apple Health data types and lists Health Connect without naming data types.

How to Setup & Sync Your Fitness Apps

Connecting Apps to Apple Health (iOS)

1. Open the Settings app on your iPhone.
2. Scroll down and tap Health.
3. Tap Data Access & Devices.
4. Select the fitness app you want to connect (e.g., UltraFit360).
5. Toggle on the specific metrics you want the app to Read or Write (we recommend "Turn On All" for the best insights).

Connecting Apps to Health Connect (Android)

1. Open your phone's Settings.
2. Navigate to Security & privacy > Health Connect.
3. Tap App permissions.
4. Select your fitness app from the list.
5. Grant the requested Read and Write permissions.

Setup Guides by Device

• Garmin — one-way to Apple Health and Health Connect
• WHOOP — two-way sync; HRV not exported to Apple Health
• Oura — two-way sync; HRV exported to Health Connect only
• Fitbit and Pixel Watch — two-way with Apple Health and Health Connect
• Polar — Flow sends one way to Apple Health; Health Connect lists more
• COROS — Apple Health data listed; no Health Connect data list
• Withings — export and import; category list only for Apple Health
• Samsung Health — two-way with Health Connect; no Apple Health sync documented

Frequently Asked Questions

How UltraFit360 Uses Your Health Data

UltraFit360 doesn't just read your data — it analyses it to give you actionable insights:

The SSR Score (Strain / Stress / Recovery)

Every morning, UltraFit360 calculates three scores from your health data:

• Strain — How hard did you push yesterday? Based on active calories, workout heart rate, and exercise duration.
• Stress — How stressed is your body? Based on HRV trends, resting heart rate changes, and sleep quality.
• Recovery — How ready are you to train? Combines sleep duration, sleep stages, HRV, and resting heart rate.

Weekly AI Health Report

The Health Agent (one of 4 AI agents in Coach's Corner) reviews your entire week of health data and identifies sleep patterns, recovery trends, overtraining signals, and resting heart rate patterns.

Energy Balance Dashboard

By combining calories consumed (from meal logging) with calories burned (from Apple Health / Health Connect), UltraFit360 shows your true net energy balance.

How to Maximise Your Health Data

1. Wear your watch to sleep — Sleep data is crucial for recovery scoring. Aim for 5–6 nights per week.
2. Enable all permissions — When UltraFit360 asks for access, enable everything. More data = better insights.
3. Be consistent — The AI needs at least 7 days of data to give meaningful recovery recommendations.
4. Check your SSR score before training — If recovery is low, consider a light session instead of a heavy workout.

Track Better with Free Tools

Before relying entirely on automated data, it's crucial to know your baseline metrics. We've built a suite of Free Fitness Calculators to help you determine your exact Macro targets, BMI, and 1-Rep Max. Connecting these baselines with your automated health data creates a truly personalized fitness journey.

Privacy: Is Your Health Data Safe?

Both Apple Health and Health Connect are privacy-first platforms. Data is stored on your device, apps must request explicit permission for each data type, and you can revoke access at any time. Read our full Privacy Policy for details.

Sources

• Google Health Help: How do I use Apple Health with the Google Health app? — data types, sync direction, iOS requirement. Checked on October 9, 2026
• Google Health Help: How do I use Health Connect with the Google Health app? — Partner apps path, Health Connect data types. Checked on October 9, 2026
• Google Health Help: What is new with the redesigned Google Health app — checked on October 9, 2026
• Android Authority: Google Health can now sync to Apple Health — checked on October 9, 2026
• 9to5Google: Google Fit will shut down in favor of Health — checked on October 9, 2026