Wearables are slowly but surely making their way into our daily lives, but one very critical aspect—health—is already helping to bring them mainstream. It’s something that every person is conscious of on a daily basis, and wearable device makers—as evidenced by the countless fitness trackers on the market—want to make it easier to stay on top of exercise, diet, and more. But another aspect of our health, chronic illness, is also big opportunity for wearables to make a difference—and they already are.

About half of all American adults have some kind of chronic illness, and diabetes is one of the most common. With the advent of smartwatches, we all now have quick access to at least one useful stat: our heart rate. But what if those with diabetes could just as easily monitor blood glucose levels? No mainstream smartwatch can monitor this alone, yet, but now one developer has released an app for Android Wear that will plug into a Dexcom CGM (continuous glucose monitor), providing glanceable updates every five minutes on blood glucose levels.

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