Table 1 WHT products and features used in Covid-19 tracking

Heart rate tracking

*

*

*

*

*

*

*

Abnormal heart rhythm warning

*

*

*

Body temperature monitoring

*

*

*

*

*

Distance tracking

*

*

Measurement of the amount of oxygen in the blood

*

*

*

*

*

*

Calorie tracking

*

*

Water resistance

*

*

*

*

Activity tracking

*

*

*

*

*

Real-time data transmission

*

*

*

*

*

*

Respiratory rate monitoring

*

*

*

*

*

*

Sleep tracking

*

*

*

Make a call or send a message

*

Cough tracking

*

Vomiting follow-up

*

Contact tracing

*

*

Sneeze tracking

*

Price

32 $

55 $

90 $

38 $

41 $

249 $

299 $

Battery life

168 h

120 h

72 h

2160 h

168 h

120 h

60 h

Weight

7.5 g

2 g

18 g

2.5 g

13 g

4 g

80 g

Single or reusable

Very

Very

Very

Very

Single

Very

Very