The Casio WSD-F21HR has a heart rate monitor, finally - Android Authority

The long-missing heart rate monitor is finally available on the Casio WSD-F21HR smartwatch featuring Wear OS. However, the device is quite expensive.

Casio WSD-F21HR Review, Pro Trek Smart

CASIO WSD-F21HR - Test 4 Outside

Casio debuts Pro Trek WSD-F21HR rugged smartwatch with heart rate monitor - PhoneArena

CASIO WSD-F21HR - Test 4 Outside

Casio's Newest PRO TREK Smartwatch Finally Has Heart Rate Monitoring

Casio Pro Trek Smart WSD-F21HR with Heart Rate Monitor

CASIO WSD-F21HR - Test 4 Outside

Casio WSD-F21HR Smartwatch

CASIO WSD-F21HR - Test 4 Outside

CASIO WSD-F21HR - Test 4 Outside

Watch of the Day: Casio Pro Trek Smart WSD-F21HR

Casio Pro Trek WSD-F21 HR Watch Review

Watch of the Day: Casio Pro Trek Smart WSD-F21HR

Casio Pro Trek WSD-F21HR review

Casio Pro Trek Smart WSD-F21HR with Heart Rate Monitor