Over the last few years, smart rings have entered the wearables space to offer an alternative form factor for health tracking ...

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Abstract: Smart rings represent the next innovation in health-tracking devices, capable of monitoring fitness, health, and sleep data. However, these devices also introduce user risks due to the ...

Abstract: Optical sensors, commonly used in wearable devices for pulse wave monitoring, face significant limitations such as dependency on sensor positioning and variations related to skin tone. To ...