Thank you for your post. After reviewing your description regarding CarPlay, I am curious to know as you are displaying blood glucose readings in CarPlay through Live Activities. Hi Albert, The Live Activity (in development, not yet in a released version) is part of the open-source diabetes app Loop, which is a hybrid-closed-loop system to connect CGMs and insulin pumps to help manage diabetes. The Loop app on the phone is reading the blood glucose data from the user's continuous glucose monitor (CGM), and then creating the Live Activity.

Indeed, initial tests show this working correctly in iOS 26.1 Beta 4. Thanks!

A few thoughts here: If you are running the Dexcom app on your phone, if you look at Apple Health you will find that Dexcom only writes its data to Health with a three-hour delay. It buffers the glucose values internally for display, but they aren't available in Health until they are three hours old. So even if you could read Health (e.g. by keeping the phone unlocked) the data wouldn't be current. However, with the introduction of widgets in CarPlay in iOS 26, you can achieve essentially what you want with little effort - install the Dexcom widget, and you can display it on the CarPlay screen. There is sometimes a little lag with it updating, but it's much better than nothing. As for alerts, those are well handled by the phone already, and any low glucose alerts should show up on the CarPlay screen as long as you allow notifications from that app while driving. Hope this helps!