How to Sync Fitbit Aria to Garmin Connect

Prerequisites

Before starting, ensure you have:

• Fitbit Aria, Aria 2, or Aria Air smart scale
• iPhone running iOS 16.0 or later
• Fitbit app installed with your scale already connected
• Garmin Connect account
• Apple Health app (pre-installed on iOS)
• A supported Fitbit-to-Apple Health connection that writes weight data

Step 1: Connect Fitbit to Apple Health

WeightSyncr reads weight from Apple Health, so first confirm that your Aria measurement reaches Apple Health:

1. Sync your scale with Fitbit first and confirm the new weight appears in your Fitbit account
2. Use a compatible Fitbit-to-Apple Health bridge that explicitly supports the Weight data type
3. Do not rely on a connection that only reads Apple Health; it must write the Aria measurement into Apple Health
4. Allow the selected connection to write Weight to Apple Health
5. Record or import a measurement before continuing

Connection names and availability can change by app version and region. The important requirement is a recent Aria weight entry in Apple Health.

Step 2: Download and set up WeightSyncr

1. Download WeightSyncr from the App Store
2. Open the app - you'll be prompted for Apple Health permissions
3. Grant Apple Health permissions:
   • Tap "Allow" when prompted for HealthKit access
   • Make sure "Weight" is toggled ON in the read permissions
   • Tap "Allow" in the top right corner
4. WeightSyncr can now read your weight data from Apple Health (including your Fitbit Aria data)

Step 3: Connect to Garmin Connect

1. In WeightSyncr, tap the "Settings" tab
2. Tap "Connect Garmin Account"
3. Follow the prompts to authenticate with Garmin
4. Complete account verification if Garmin requests it
5. Wait for the connection to complete

You should now see a green "Connected" status in WeightSyncr's Settings tab.

Step 4: Test the sync

Let's verify everything is working:

1. Step on your Fitbit Aria to record a new weight
2. Wait 1-2 minutes for the data to sync to the Fitbit app
3. Wait for your configured connection to write the weight to Apple Health
4. Open WeightSyncr and check the Home tab
5. Your new weight entry should appear with a sync status
6. For manual sync (free): Tap the "Sync" button next to the entry
7. For auto-sync (premium): Data will upload automatically
8. Check Garmin Connect - your weight should appear immediately

Troubleshooting

Weight not appearing in WeightSyncr

• Check the Apple Health source: Open Apple Health > Browse > Body Measurements > Weight. The latest Aria weight must be present before WeightSyncr can read it.
• Verify WeightSyncr permissions: Settings > Privacy & Security > Health > WeightSyncr > ensure "Weight" is enabled
• Force refresh: Pull down on the Home tab in WeightSyncr

Fitbit data not reaching Apple Health

• Check the selected connection: Confirm it has permission to write Weight to Apple Health
• Check Fitbit app sync: Make sure your Aria data appears in the Fitbit app first
• Review its compatibility: Some connections import activity data but do not write weight

Sync failing to Garmin Connect

• Check connection: Go to WeightSyncr Settings and verify Garmin shows "Connected"
• Reconnect account: Tap "Disconnect" then "Connect Garmin Account" again
• Authentication requested: Reconnect and complete Garmin verification

Frequently Asked Questions

Which Fitbit scales work with this setup?

Aria, Aria 2, and Aria Air can use this path when their weight measurements reach Apple Health through a compatible connection. Verify that prerequisite before setting up WeightSyncr.

Why not sync directly from Fitbit to Garmin?

Fitbit and Garmin don't have direct integration. Apple Health acts as the intermediary, and WeightSyncr handles the Garmin Connect upload.

How long does the sync process take?

Total time: A few seconds once data reaches Apple Health.

Do I need a WeightSyncr subscription?

You can sync entries manually for free. For automatic background syncing, check our pricing options.