Your Smartwatch Is Getting Smarter—But There's a Hidden Cost Nobody's Talking About

Wearable health devices are becoming incredibly sophisticated, but they could generate over a million tons of electronic waste by 2050 unless manufacturers change how they're built. A new study from Cornell University and the University of Chicago reveals that demand for health wearables could reach 2 billion units per year by 2050—42 times more than today.

At the Consumer Electronics Show (CES) 2026 in Las Vegas, tech companies are showcasing the latest artificial intelligence (AI)-powered health innovations. From smartwatches that can detect irregular heart rhythms to AI-powered skin diagnostic systems, these devices are transforming how we monitor our health. More than 86.4 million US consumers—nearly one-quarter of the US population—will use a health-related smart wearable in 2026.

What Makes Modern Health Wearables So Advanced?

Today's wearables go far beyond counting steps. They continuously monitor multiple health metrics and use AI to provide personalized insights. Popular devices like Apple Watch, Fitbit, and Garmin now include medical-grade sensors that can track electrocardiograms (ECGs), blood oxygen levels, and sleep stages. By 2026, these devices will routinely flag early warning signs to both users and their doctors.

The latest CES 2026 Innovation Award honorees showcase just how sophisticated these devices have become:

• Derma Reader 2.0: Uses AI-powered skin analysis to bring dermatologist-level diagnostics into retail settings
• MediSpa AI Pro 3.0: Tracks health metrics and uses AI to craft personalized wellness plans and implement treatments
• Home Therapy Booth 2.0 with AI Mental Coach: An at-home wellness booth that combines biometric sensing and AI coaching for mental health solutions
• Samsung Bespoke AI Companion Care: Extends AI into the smart home ecosystem, using adaptive appliances to personalize daily care routines

Why Are Circuit Boards the Real Environmental Problem?

The environmental impact isn't coming from where you might expect. The study published in Nature found that the printed circuit board—the device's "brain"—accounts for 70% of its carbon footprint, largely due to intensive mining and manufacturing of rare minerals like gold. It's not the plastic casing that's the problem.

Unless manufacturing changes, these devices could generate over a million tons of electronic waste and 100 million tons of carbon dioxide by 2050. "When these devices are deployed at global scale, small design choices add up quickly," wrote one of the study's co-authors.

What Solutions Are Researchers Proposing?

The researchers suggest two main fixes to reduce the environmental impact. First, develop chips using common metals like copper instead of rare minerals like gold. Second, make devices modular so the circuit board can be reused while the outer covering gets replaced.

Meanwhile, the healthcare industry continues investing heavily in these technologies. Hospitals and health systems are allocating growing shares of their capital expenditures to digital initiatives, with information technology (IT) and digital health budgets rising each year. The convergence of AI with routine clinical practice is creating entirely new markets—hospitals now pay for AI cardiac imaging service subscriptions that were science fiction just a few years ago.

As wearable health technology becomes more sophisticated and widespread, balancing innovation with environmental responsibility will be crucial. The challenge isn't just making devices smarter—it's making them sustainable for a world where billions of people will rely on them for their health.