1970, Hamilton Watch Company introduce Pulsar making it the first watch with a user-programable memory.
1980, Seiko began to develop computers in formal watch. Although these watches had very small memory, they sowed the seeds of a dream to make watches smarter as a technology.
1994, Wireless data transfer mode was incorporated when Timex Datalink came in the market.
1998, Linux wristwatch became as wearable computer.
2003, Fossil released the wrist PDA that had 8MB of RAM
2004, Microsoft introduced SPOT. The device offerd information including weather, stock, prices, and sports scores. Sony Ericson introduced the first Bluetooth technology to connect data from the smartphone.
2013, True Smart became the first ever Smartwatch to capture the full capacity of smartphone making it the 'Year of Smartwatch'.
2018, top watch makers in the market are Apple, Samsung, and Casio. The Smartwatches these days are almost replaceable with smartphones since they offer built in LTE cellular connectivity.