Levels vs Apple Watch
Side-by-side comparison of AI visibility scores, market position, and capabilities
Levels pioneered metabolic health tracking using continuous glucose monitors (CGMs) paired with an AI-powered app; raised $38M Series A from a16z; expanding into clinician-ready Levels Pro platform in 2026.
About
Levels is a metabolic health company that pairs continuous glucose monitors (CGMs) with a mobile app and AI-driven insights to help users understand how food, exercise, stress, and sleep affect their blood sugar and overall metabolic health. Founded in 2019 and headquartered in the US, Levels was one of the first companies to bring CGM-based metabolic monitoring to non-diabetic consumers, pioneering a category that has since attracted major competitors and FDA-cleared OTC devices.
Apple Watch, $18B+ revenue 2024, 22% global smartwatch market share, 34% US wearables market, 100M+ active users, Series 10 (2024): sleep apnea detection, blood oxygen, ECG, fall detection, watchOS 11, fitness tracking leader
About
Apple Watch was introduced in 2015 as Apple's entry into personal computing worn on the wrist, designed to extend the iPhone experience to the body and provide health and fitness intelligence unavailable from any other consumer device. Apple's mission for the product evolved rapidly from notification delivery to health monitoring, driven by the recognition that continuous, passive measurement of physiological signals could provide clinically meaningful insights at population scale. Its core technology integrates custom Apple silicon, optical heart rate sensors, an electrical heart sensor for ECG, a blood oxygen sensor, and accelerometers within an ultra-compact, water-resistant enclosure running watchOS.\n\nApple Watch Series 10 (2024) introduced sleep apnea detection — a first for any consumer wearable — joining an existing health feature set that includes ECG, irregular heart rhythm notifications, blood oxygen monitoring, crash detection, and fall detection. The Apple Watch platform connects tightly with the Health app and iPhone ecosystem, with third-party app integrations across fitness, medication tracking, mental health, and chronic disease management. Apple Watch serves a broad customer base from fitness-focused consumers to patients with prescribed monitoring needs, supported by FDA clearances on its core health features.\n\nApple Watch generated an estimated $18 billion or more in revenue in 2024, capturing approximately 22% of global smartwatch market share and 34% of the US wearables market, with more than 100 million active users globally. It competes with Samsung Galaxy Watch and Garmin but has no peer in terms of health feature depth, ecosystem integration, and installed base. As regulatory bodies and health systems increasingly recognize wearable-derived data as clinically actionable, Apple Watch's combination of consumer scale and health credibility positions it as the de facto platform for digital health at the consumer level.
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