Withings' ScanWatch is the best hybrid smartwatch I've tried so far

Withings ScanWatch review - Saga Exceptional

Withings ScanWatch 2 Heart Health Hybrid Smartwatch 42mm Black/Silver HWA10-model 4-All-Int - Best Buy

Withings' ScanWatch is the best hybrid smartwatch I've tried so far

Advanced 43mm Scanwatch Horizon Withings smartwatch. Integrates an electrocardiogram, SpO2, 3 electrodes, an altimeter, a PMOLED screen. 30-day battery life. Stainless steel and fluoroelastomer bands included. Waterproof up to 100 meters.

Withings Scanwatch Horizon 8 Smartwatch Silver

Withings ScanWatch 2 - Hybrid Smartwatch With ECG (42mm) Black Hybrid HWA10-MODEL 4-ALL-INT - First Class Watches™ USA

I Nearly Replaced My Apple Watch With This Swanky, Luxe Hybrid Watch - CNET

Withings Steel HR Sport Hybrid Smartwatch (40mm) - Activity, Sleep, Fitness and Heart Rate Tracker with Connected GPS, Smart Notifications, Water Resistant with 25-Day Battery Life : Electronics

Withings ScanWatch Reviewed - Gadgetoid Gadgetoid

Withings ScanWatch Hybrid Smartwatch with ECG, heart rate and oximeter 38mm Black HWA09-MODEL 2-ALL-INT - Best Buy

The world's first analog watch with clinically validated ECG - ScanWatch