A wearable smart device is configured to be positioned on and external to a robot having a robot sensor for sensing robot data and a robot input/output port. The wearable smart device includes a device sensor capable of detecting device data corresponding to an environment of the wearable smart device. The wearable smart device also includes a device input/output port. The wearable smart device also includes a device processor coupled to the robot sensor via the robot input/output port and the device input/output port. The device processor is also coupled to the device sensor and configured to control the robot based on the robot data and the device data.