. 2025 May 6;27:e65272. doi: 10.2196/65272
©Sarah Aziz, Amal A M Ali, Hania Aslam, Alaa A Abd-alrazaq, Rawan AlSaad, Mohannad Alajlani, Reham Ahmad, Laila Khalil, Arfan Ahmed, Javaid Sheikh. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 06.05.2025.
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Figure 2.
Sensor types used for sleep analysis by devices. ACC: accelerometer; ECG: electrocardiogram; PPG: photoplethysmography.