The Verdict

A hybrid smartwatch that looks like a classic timepiece while packing medical-grade sensors. Ideal for those who want health monitoring without the tech-forward appearance of typical smartwatches. The 30-day battery is unmatched.

Pros

FDA-cleared ECG and SpO2
Exceptional 30-day battery life
Classic analog watch design
Medical-grade AFib detection

Cons

HRV features less prominent than competitors
Limited smartwatch functionality
Smaller display than full smartwatches
App could be more intuitive

Medical-Grade Sensors

ScanWatch 2 includes FDA-cleared ECG for atrial fibrillation detection and medical-grade SpO2 monitoring. It can detect breathing disturbances during sleep that may indicate sleep apnea—a condition that significantly impacts HRV.

HRV Tracking

Withings measures HRV continuously during sleep using PPG sensors. The Health Mate app displays overnight HRV trends and provides a daily "Health Score" that incorporates HRV alongside other metrics like activity and sleep quality.

The Hybrid Advantage

Unlike full smartwatches, ScanWatch looks like a traditional watch with a small OLED display for metrics. This design enables the exceptional 30-day battery life. If you prefer understated wearables, this is the health tracker that won't scream "tech device" on your wrist.