Casio’s CA53W calculator watch is evaluated for its lightweight construction, built-in functions, and five-year battery life, ...

Cool stuff: A British startup has developed a watch geared at NASA super geeks (you know who you are). The timepiece takes the concept of the calculator watch, which was highly popular in the 1980s, ...

When humans counted on their fingers, everyone had a state-of-the-art (at the time) calculator at all times. But as we got smarter about calculation, we missed that convenience. When slide rules were ...