Garmin Launches Cirqa, Its First Screen-Free Smart Band, Amid Growing Wearable Tech Trend

As wearable technology ownership among U.S. adults rises to 41.1%, manufacturers are expanding beyond traditional smartwatches. Garmin has launched the cirqa, its first screen-free smart band, to offer distraction-free health tracking. Concurrently, RingConn has introduced its Gen 3 smart ring featuring haptic alerts, while researchers at UC San Diego have prototyped a smart ring that monitors sweat biomarkers. Despite these innovations, medical experts like Dr. Sos Mboijana caution that consumer wearables provide estimates rather than clinical diagnoses, urging users to focus on long-term trends.

Wearable health device types

• ▪Smart rings provide health tracking in a compact design, monitoring sleep quality, heart rate, activity, recovery, and body temperature.
• ▪Garmin launched the cirqa, a screen-free smart band designed to track workouts, daily activity, sleep, and recovery without traditional smartwatch distractions.
• ▪RingConn launched the RingConn Gen 3 smart ring on July 25, 2026, featuring vascular trend tracking and haptic vibration alerts.
• ▪Fitness trackers focus primarily on physical activity, tracking steps, distance, calories burned, exercise minutes, and sleep.
• ▪Medical wearables, such as continuous glucose monitors and wearable ECG monitors, work alongside healthcare professionals to support disease management.
• ▪Smartwatches combine fitness tracking with smartphone features to monitor heart rate, sleep, physical activity, blood oxygen, and GPS location.

Biometric sensors in wearables

• ▪Accelerometers detect body movement to count steps, estimate distance traveled, and measure activity levels.
• ▪Gyroscopes monitor body orientation and movement, improving exercise tracking and fall detection features.
• ▪Optical heart rate sensors use light to measure changes in blood flow beneath the skin to estimate heart rate throughout the day.
• ▪Temperature sensors measure skin temperature to identify changes related to illness, recovery, or menstrual cycle tracking.
• ▪Researchers at the University of California San Diego developed a prototype smart ring called CHARM that continuously measures up to four sweat biomarkers in real time.

Health tracking benefits

• ▪Wearable devices assist individuals in managing chronic conditions such as diabetes, high blood pressure, and heart disease.
• ▪Wearables improve sleep awareness by estimating sleep duration, sleep stages, and sleep consistency.
• ▪Wearable health technology encourages physical activity through reminders and daily step targets.
• ▪Wearables support heart health by continuously monitoring heart rate and notifying users of unusually high, low, or irregular readings.

Wearable accuracy limitations

• ▪Proprietary algorithms used by wearable companies to calculate sleep and recovery scores are not validated to speak to clinical health outcomes.
• ▪The NPJ Digital Medicine study found that while most wearable users are willing to share health data with doctors, fewer than one in five actually do.
• ▪A study published in NPJ Digital Medicine found that wearable device ownership among U.S. adults increased by 36.1% from 2020 through 2024, rising to 41.1% in 2024.
• ▪Consumer wearables provide estimates rather than clinical-grade measurements, and factors like device placement, skin tone, and movement can affect accuracy.

Device selection criteria

• ▪Dr. Sos Mboijana recommends consulting a primary care physician before purchasing a wearable device to match it to health goals and understand the medical evidence.