Table 4 Major lessons learned for each wearable sensor

Participant Perspective

• Least preferred

• Highest wear time

• Most preferred

• Uncomfortable and inconvenient

• Comfortable during wake and sleep periods

• Most comfortable and convenient (i.e., out of the way)

• Difficult to remember to put back on

• Less convenient location (i.e., bulky at the wrist)

• Unattractive appearance

Researcher Perspective

• Long battery life and large memory capacity

• Long battery life and large memory capacity

• Battery life 5–7 days

• Raw waveform data collection

• Raw waveform data collection

• Raw data cannot be collected; unable to make cross-monitor comparisons

• Semi-proprietary data processing

• Non-proprietary data processing

• Proprietary data processing

• Less expensive monitor

• Less expensive monitor

• Most expensive monitor

• Costs for associated software package and periodic upgrades

• Free, open-source software package

• Cost for associated software package

• Well-developed software platform with full-range of researcher designed specifications

• Complicated, time-intensive data processing

• Easy to use software platform