Connect CGM Data to a Secondary Glucose Display

Help → CGM Connections

Practical, device-agnostic setup guides for Dexcom, FreeStyle Libre, and Nightscout.

Safety note: Secondary displays are supplemental. Always rely on your primary CGM app/device for treatment decisions and alerts.

Using Glucose Display?

Here’s exactly what to do to connect it. Go to the product page.

Last updated: Feb 2026

Choose your CGM source

Quick checklist (top gotchas)

  • Primary CGM app shows current readings.
  • Phone has reliable internet + background data allowed.
  • Sharing is enabled (Share / LibreLinkUp / Nightscout).
  • At least one valid follower/connection is active.
  • Device time/timezone are correct.

Need more help?

See the Troubleshooting hub for cross-provider fixes.

Still stuck? We can help.

Contact support at our support page and include: source, symptom, phone OS, network type, and a screenshot if possible.