An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

An Internet of Thing (IoT) sport device includes a sensor coupled to a processor; and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) sport device includes a body with a processor, a camera and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) sport device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) sport device includes a helmet and sensors including a camera and an accelerometer; a processor; and a wireless transceiver coupled to the processor.

Various embodiments of a foot positioning device are provided. In one embodiment, a foot positioning device is provided, the device comprising: a proximal strap operatively connected to at least one of an individual's ankle or lower leg; a distal strap operatively connected to the individual's foot; and a heel strap connected to the proximal strap and the distal strap; wherein the foot positioning device causes a moment that biases the individual's foot toward a plantar flexion position.

A set of diving devices and methods of using the same in, for example, a water-based game, are provided. The devices comprise two or more diving devices, each being configured to be tossed into a body of water and upon entry to cause a water entry noise that is distinct from water entry noises corresponding to each of the other diving devices in the set of diving devices. The distinctness of the water entry noise for each device in the set is due at least in part to at least one of a size of each of the diving devices, a shape of each of the diving devices, a density of each of the diving device, and/or a weight of each of the diving devices. The methods involve users attempting to retrieve devices based upon distinct water entry noises and/or emitted audio signals, with points being awarded thereupon.

An Internet of Thing (IoT) sport device includes a light source; sensors including a camera and a microphone array; a processor coupled to the light source and the sensor; and a wireless transceiver coupled to the processor.

An Internet of Thing (IoT) sport device includes a light source; sensors including a camera and a microphone array; a processor coupled to the light source and the sensor; and a wireless transceiver coupled to the processor.

Various embodiments of a foot positioning device are provided. In one embodiment, a foot positioning device is provided, the device comprising: a proximal strap operatively connected to at least one of an individual's ankle or lower leg; a distal strap operatively connected to the individual's foot; and a heel strap connected to the proximal strap and the distal strap; wherein the foot positioning device causes a moment that biases the individual's foot toward a plantar flexion position.