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Frequently Asked Questions
Common questions about Glucose Watch - Dexcom Companion.
What is Glucose Watch - Dexcom Companion?
Glucose Watch - Dexcom Companion sends your Dexcom G7 glucose readings to your Galaxy Watch so you can view them on your watch face or in a tile.
Do I need a Dexcom G7?
Yes. The app reads glucose data from the Dexcom G7 app's Quick Glance notifications.
Which watches are supported?
Galaxy Watch devices running Wear OS 3 or later that pair with your Android phone.
Do I need to install the app on my watch?
When you install Glucose Watch - Dexcom Companion on your phone, the watch app is usually installed automatically on your paired Galaxy Watch. If it doesn't appear: (1) Make sure your watch is paired with your phone via Bluetooth. (2) Reinstall the phone app while the watch is connected. (3) Or open the Play Store on your watch and search for "Glucose Watch - Dexcom Companion" to install it manually.
How do I add glucose to my watch face?
Long-press your watch face, tap Customize, then tap a complication slot and choose "Glucose Watch - Dexcom Companion / Glucose".
How do I add the glucose tile?
Swipe right from the watch face to open the tiles. Long-press a tile slot and add the "Glucose" tile from Glucose Watch - Dexcom Companion.
Why do I need to grant notification access?
The app reads Dexcom G7 Quick Glance notifications to extract glucose values. It only processes Dexcom notifications and does not read other notifications.
Is my glucose data sent to any server?
No. All processing happens locally on your device. Glucose data is only sent between your phone and watch over Bluetooth.
Does the app require an account?
No. There is no sign-in or account required.
Glucose is not showing on my watch. What should I check?
Ensure: (1) Notification access is granted, (2) Quick Glance is enabled in the Dexcom G7 app, (3) Phone and watch are paired via Bluetooth, (4) The complication or tile is added correctly. Try "Resend to Watch" in the app.
The app says "Sync: Failed". What does that mean?
The watch did not confirm receiving the data. Check that the watch is connected and try "Resend to Watch".
Readings are outdated or missing.
Dexcom G7 sends Quick Glance notifications about every 5 minutes. If you don't see new readings, ensure Quick Glance is enabled and the Dexcom G7 app is working.
Is this app affiliated with Dexcom?
No. Glucose Watch - Dexcom Companion is not affiliated with or endorsed by Dexcom.
Is this a medical device?
No. It is for convenience only. Always rely on your Dexcom G7 app and CGM for medical decisions.
What is the Post-meal walk timer?
The Post-meal walk timer is a configurable countdown (10–60 minutes, default 15) that helps you time when to start walking after a meal. Tap the "Start timer" button on the glucose tile or tap the glucose complication on your watch face to open it. Use the − and + buttons to set the duration when the timer is not running. The timer shows your current glucose reading and updates when new data arrives.
How do I start the Post-meal walk timer?
On your watch: tap the "Start timer" button on the glucose tile (swipe right from the watch face), or tap the glucose complication on your watch face. Both open the timer screen where you can start, pause, resume, or reset the timer.
Why does the timer need alarm permission?
The timer uses an alarm to notify you when the set time is up, even if the watch screen is off. Grant "Alarms & reminders" in your watch settings so the timer can alert you on time.
The timer screen is cut off. How do I scroll?
The timer screen is scrollable. Use the watch bezel (rotary crown) to scroll up and down when content is taller than the screen.