Table 2.
Features of the wearable devices (N=19).
| Feature | Values | References | |||
| Status of WDa, n (%) | |||||
|
|
Commercial | 17 (89) | [46-54,57-60,62-64] | ||
|
|
Noncommercial | 1 (5) | [51] | ||
|
|
Not reported | 2 (11) | [55,56] | ||
| Name of WD, n (%) | |||||
|
|
Empatica E4 | 3 (16) | [48,61,64] | ||
|
|
Galaxy (Watch Active2 and Gear S, S2, and S3) | 3 (16) | [47,48,54] | ||
|
|
Fitbit (Charge 2) | 2 (11) | [53,58] | ||
|
|
Microsoft Band 2 | 2 (11) | [50,62] | ||
|
|
Others | 1 (5) each | [46,49,51,52,54,59,60,63] | ||
|
|
Not reported | 2 (11) | [55,56] | ||
| Type of WD, n (%) | |||||
|
|
Smart bands | 12 (63) | [48-51,55,56,58-62,64] | ||
|
|
Smartwatches | 6 (32) | [46-48,51-54,63] | ||
|
|
Electrodes | 2 (11) | [52,63] | ||
|
|
Others | 1 (5) each | [54,57] | ||
| Placement of WD, n (%) | |||||
|
|
Wrist | 16 (84) | [46-51,53-56,58-62,64] | ||
|
|
Chest | 3 (16) | [51,52,63] | ||
|
|
Finger | 3 (16) | [54,59,63] | ||
|
|
Palm | 2 (11) | [52,63] | ||
|
|
Others | 1 (5) each | [57,63] | ||
| Duration of wearing WD | |||||
|
|
Range | 10 min to 365 d | N/Ab | ||
|
|
Not reported, n (%) | 6 (32) | [46,50-52,57,62] | ||
aWD: wearable device.
bN/A: not applicable.