Peri Wearable Earns Spot on TIME's Best Inventions of 2026 List

The device, a lightweight sensor worn under the breast, addresses a long-standing clinical hurdle: the lack of standardized biomarkers for perimenopause. While traditional wrist-based trackers often fail to capture signals for hot flashes and night sweats, Peri's placement allows for precise monitoring of symptoms as they originate in the upper body. The company spent five years building its proprietary AI platform, training algorithms exclusively on continuous data from 204 women involved in clinical trials.

Beyond simple tracking, the system provides users with an objective record of their physiological changes, including sleep patterns, movement, and hormonal cycles. This data replaces the need for patients to rely on memory during brief clinical consultations. By presenting doctors with weeks of tracked symptoms, women can better advocate for tailored treatments, such as hormone therapy, and monitor their effectiveness in real-time. Co-founder and CEO Heidi Davis noted that the technology aims to stop women from navigating this life stage "flying blind." Retailing at $349 with no recurring subscription fees, the device is now positioned to aid broader research into the long-term links between midlife health, bone density, and cognitive function.