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A wearable calculator
Hamilton Watch introduces a Pulsar calculator watch in October of 1975. Image: Rept0n1x / CC 3.0 -
Here comes the Walkman
Sony introduces the Walkman, a commercially available, wearable cassette player. Image: Wikimedia -
RIM 850 Pager
Research in Motion (now BlackBerry) launches its first pager, known as the RIM 850. Image: Blackberry / Wikimedia -
Bluetooth for all
The first Bluetooth headset is shipped in the year 2000. Image: Kocio / CC 3.0 -
Wearables meet health
Fitbit releases its first health and fitness device, which is designed to be clipped onto clothing and track steps taken, distance traveled, calories burned, activity intensity and sleep. Retails for $99. (Fitbit Flex pictured) Image: MorePix / CC 3.0 -
Sony's first smartwatch
Sony markets the SmartWatch, which uses Bluetooth to connect to an Android smartphone. It retails for $150 Image: Alexsh / CC 3.0 -
Google Glass unveiled
Google unveils the beta version of Google Glass to a select group of users known as Explorers. Google Glass is an optical head-mounted display attached to a pair of glasses that is controlled by the user’s voice. It connects to the Internet using Wi-Fi. Image: Antonio Zugaldia / CC 3.0 -
Apple's iWatch
Rumors circulate about the coming of Apple’s iWatch, a smartwatch that would connect to the Internet using Wi-Fi. Image: Cryptic C62 / CC 3.0