A wearable telemetry device for monitoring a target object, for example, a baby, includes a strap and an enclosure that encloses components including a processor, sensors, an audio capture device, an output device, and a rechargeable power unit. The processor executes modules of the wearable telemetry device for receiving user input data from a user device, facilitating communication between the target object and the user device via a transceiver, activating and controlling the sensors, the audio capture device, and the output device based on the user input data, filtering sensor data, computing monitoring indexes by processing health parameters, motion, and/or position of the target object detected by the sensors, in accordance with threshold data, ambient audio signals received by the audio capture device, and/or the user input data, and generating and transmitting alert notifications based on the monitoring indexes to the target object, and/or the user device via the transceiver.
