Casio has refreshed its legendary F-91W watch by adding step counting and smartphone connectivity, blending innovative fitness features with the classic, minimalist design that made it a global icon since 1989.
Casio has updated one of its most recognisable budget watches without changing the formula that made it famous. The new F-B100W series keeps the slim, lightweight, resin-built shape associated with the F-91W line, but adds an accelerometer for step counting and smartphone connectivity. According to Casio’s Japanese product page, the watch can show step totals and goal progress on the display, then sync that data to a dedicated app for daily activity tracking.
That matters because the original F-91W became a byword for extreme simplicity. Casio’s US and global pages still describe it as a 1989 model defined by its thin case, low cost, long battery life and basic functions such as an alarm, stopwatch and light. Wikipedia and independent fan sites say it has sold in enormous numbers over the decades, helping it become one of the most widely recognised digital watches ever made.
The F-B100W does not try to turn that into a full smartwatch. Instead, it adds a small set of practical features for walking, jogging and general fitness use. Casio says the 1/100-second stopwatch can store up to 200 lap times, which should also make it more useful for runners and school athletes than the original model.
Casio is offering three variants, including a version with an inverted black-and-white display that gives the watch a darker look. The line is priced at ¥8,800 in Japan, which keeps it well below most connected wearables while preserving the low-maintenance appeal that made the F-91W a classic in the first place.
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