Fitbit Sense 2
Fitbit
by Withings • Model: ScanWatch 2 (HWA10)
The Withings ScanWatch 2 is a medically-validated hybrid smartwatch designed for long-term cardiovascular monitoring. It features an on-demand ECG for detecting atrial fibrillation (AFib) and uses a TempTech24/7 module to track body temperature fluctuations day and night. With a 30-day battery life and a durable sapphire glass build, it offers a discreet alternative to traditional digital smartwatches while providing clinical-grade metrics including SpO2 and respiratory scanning.
Eligibility may vary by provider and plan. Check with your HSA/FSA administrator for specific details.
Evidence-based evaluation by medical professionals
"A sophisticated hybrid watch that bridges the gap between traditional aesthetics and advanced medical-grade health surveillance, featuring an industry-leading 35-day battery life."
The Withings ScanWatch 2 (Model HWA10) is a premier hybrid smartwatch that integrates advanced clinical sensors into a timeless analog design. Its core medical utility centers on the Scan Monitor, which is FDA-cleared for recording single-lead ECG rhythms to detect Atrial Fibrillation (AFib). Clinical validation in a study of 262 subjects demonstrated a 96.3% sensitivity for AFib detection and 100.0% specificity for normal sinus rhythm. Beyond its EKG capabilities, the device features the TempTech 24/7 module, which uses a heat-flux sensor and a temperature sensor to provide continuous baseline temperature variations. It also passively monitors for irregular heart rhythms via a multi-channel PPG sensor and tracks blood oxygen (SpO2) levels. Designed for health-conscious adults (22+ in the U.S.), the ScanWatch 2 offers a 'spot-checking' approach to health monitoring, providing professional-grade PDF reports for easy data sharing with clinicians. While its grayscale OLED screen is minimal, its 35-day battery life ensures near-continuous health data collection that few other smartwatches can match.
Ranked #5 of 7 clinically evaluated smartwatches with ecg devices
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Verified retailers and current pricing
FSA/HSA eligible; includes 1-year limited warranty.
Free shipping and returns; often available with bundled accessories.
In-store demonstration available in select locations.