How to see Dexcom G7 and G6 readings on CarPlay
Yes. Sweet Dreams shows your Dexcom readings on CarPlay: on iOS 26 or later, your Live Activity appears automatically when you start driving. You connect with your normal Dexcom account (not Dexcom Follow).
- Works with
- Dexcom G7, Dexcom G6, Dexcom ONE+
- Sign in with
- your normal Dexcom account (not Dexcom Follow)
- Updates
- A new reading every 5 minutes, when Dexcom uploads it.
- Not supported
- Dexcom ONE (the original); Stelo
- CarPlay
- Included in Sweet Dreams Premium
Step 1: Connect Dexcom to Sweet Dreams
Already have a follower in Dexcom Follow? Skip to the last step.
- Open the Dexcom app and tap the Share icon to turn on Dexcom Share.
- Invite at least one follower. Your own email address works. Dexcom doesn't send readings to its servers unless someone follows you, so this step is required even if you only want to see your own data.
- In the follower settings, make sure the follower can see your trend graph.
- Accept the invitation in the Dexcom Follow app. Download it first if you don't have it.
- In Sweet Dreams, choose Dexcom and sign in with the wearer's Dexcom account, not the Dexcom Follow account.
Step 2: Set up CarPlay
- Start a Live Activity in Sweet Dreams.
- Connect your iPhone (iOS 26 or later) to CarPlay. The Live Activity shows up automatically when you start driving.
- Optional: in Settings → CarPlay, choose a glass background. This setting also affects the Live Activity on Apple Watch.
Good to know for Dexcom
- As a fallback, Calendar integration (Settings → CarPlay → Connect with Calendar on iOS 26, or Settings → Calendar on earlier versions) puts your latest reading in a Sweet Dreams calendar that CarPlay can show. The Live Activity performs better, so use that where you can.
Common questions
Is CarPlay free?
CarPlay is part of Sweet Dreams Premium. Downloading the app and setting up alerts is free.
Which Dexcom account do I sign in with?
The sensor wearer's Dexcom account. Turn on Dexcom Share with at least one follower, then sign in to Sweet Dreams with the wearer's Dexcom account.
Does Sweet Dreams work with Dexcom ONE or Stelo?
No. Neither uploads readings to Dexcom Share, which is where Sweet Dreams reads them from. Dexcom ONE+ is supported.
Why do I need a follower if I only want to see my own readings?
Dexcom only sends readings to its servers when Share has at least one follower. Inviting yourself counts.
Free on the App Store for iPhone, Apple Watch, iPad and Apple silicon Macs.
Last updated 2026-10-12