Wearables Absorb CGM Startups

This shift shows standalone CGM apps are turning into features inside bigger health products, not enduring product categories by themselves. A glucose patch gives a useful two week read on how cereal or a late dinner affects blood sugar, but it is still an arm sensor that needs replacement and active interpretation. Rings and broader health apps win because they can stay on all day, layer in sleep, stress, meals, and coaching, and keep users engaged after the novelty of glucose graphs fades.

• Levels has clearly moved beyond being just a CGM wrapper. Its app now includes meal logging, macro tracking, activity and sleep imports, labs, guided programs, and nutritionist sessions, with CGM framed as one input users can add when needed. That is what broadening into nutrition looks like in practice.
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• Oura is doing the opposite move from the wearable side. It added Dexcom Stelo integration and meal logging into the Oura app, so glucose becomes one more stream inside a sleep and recovery product that already has daily habit, subscription, and retail distribution. That makes metabolic tracking easier to absorb than to buy standalone.
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• For Ultrahuman, the implication is that the ring was the right escape hatch. Internal data shows Oura scaled from about $225M in 2023 to $500M in 2024 and $1B in 2025, while Ultrahuman pivoted from CGM into rings in 2022 and reached about $70M in 2025. The market rewarded the always on form factor and the broader app surface around it.
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The next phase is a few large health operating systems, each combining passive wearable data, food logging, labs, and selective glucose inputs. In that market, CGM startups either become coaching and care layers around weight loss and metabolic disease, or they plug into ring and smartwatch ecosystems that already own daily attention.