A smart device is an electronic device, generally connected to other devices or networks via different wireless protocols such as Bluetooth, NFC, WiFi, 3G, etc., that can operate to some extent interactively and autonomously. Several notable types of smart devices are smartphones, phablets and tablets, smartwatches, smart bands and smart key chains. The term can also refer to a ubiquitous computing device: a device that exhibits some properties of ubiquitous computing including–although not necessarily–artificial intelligence.