Smartwatch Forever IGO PRO JW-200 Pink 1.4 Inch IP68 for Girls Steps, Thermometer, Heart Rate, Games, Bluetooth Connection, Breathing Exercises, 10 Days Battery: Amazon.co.uk: Sports & Outdoors
Measurement of respiratory rate using wearable devices and applications to COVID-19 detection | npj Digital Medicine
H9 Smart Watch 24 Hour Heart Rate Blood Pressure Blood Oxygen Breathing Rate ECG + PPG Body Temperature Monitoring Men Women Watch (A) : Amazon.de: Fashion
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covid: From respiratory rate to audio analytics, this is how smartwatches could help detect Covid - The Economic Times