3 Simple Steps to a Healthier, Fitter You

Monitor and improve your weight and wellness with the free Starfit App.
 Track your body trends with detailed data analysis — understand how your body is changing, not just what the scale says.

  • Connect & Measure

    Pair your scale with the Starfit App and get an instant, full-body reading.

  • View Your Data

    See clear charts and trends that show how your body is changing over time.

  • Improve

    Set goals, adjust your routine, and track progress to stay on cour.

How to Connect the Starfit APP with the Scale?

Step 1

Click “Account”, then go to “My Devices.”
Tap the “+” icon in the upper right corner, and select the Bluetooth logo to add your device.

Step 2

Step on the scale to wake up the display.

Step 3

When you see “Runstar-RX” (the scale’s Bluetooth name), tap it to complete the connection.
Once connected, a Bluetooth icon will appear on your scale’s display.

Starfit APP FAQs

Frequently Asked Questions

Home Page Help Center
1. How to connect the Starfit APP with the Scale?

1. Download Starfit APP and complete registration.
2. Click on 'Account' and find 'My Devices'.
3. Click on the '+' in the upper right corner, then click on the 'Bluetooth' logo on the page to search for smart devices.
4. When you find 'Runstar-RX' (Bluetooth name of scale), click to complete the connection.
At this point, a connected logo will appear on the screen of the scale.
2. Why keeps disconnected?

Please make sure you have successfully connected the scale in the starfit APP, not in the Bluetooth list of your phone. Confirm that there are no other devices around that are connected to the body fat scale. If there are, please disconnect them first and give priority to connecting your device to the scale.
3. How can multiple users use the same scale?

There are 2 ways:

(1) Multiple Users with Separate Starfit Accounts. Please note that only 1 Starfit account can pair with the smart scale at a time when measuring.

(2) Multiple Users with a Shared Starfit Account. Users who create or log in to a Starfit account can create multiple user profiles within their account.
4. How can I sync data to Samsung Health?

Please download Fitdays instead of Starfit, and turn on Samsung Health in 'Settings' to sync. You can log in with your Starfit account, and the saved data in Starfit will be automatically synced to Fitdays.
5. Can the Starfit APP be used on an iPad? In other words, can the runstar scale be connected to an iPad?

Sorry, Starfit APP does not support iPad at the moment and cannot be used on iPad, so we do not recommend using iPad to download Starfit and connect with scale. Thank you!

Daily Health Monitoring & Fitness Progress Tracking

RunStar’s body composition analyzer delivers precise metrics to guide you—whether you're starting out, leveling up, or fine-tuning peak performance.

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