Casio F-B100W Bluetooth watches go on sale at £55 — classic F-91W design gets step tracking and smart features

Casio has officially launched its F-B100W Bluetooth watches outside Japan, bringing modern functionality to the iconic design of the beloved F-91W. The teal F-B100W-3A and black F-B100W-1A are now available for purchase directly from Casio's UK website at £55. However, the F-B100W-1B variant with a negative display has not yet been released, and Casio has not provided any timeline for its availability.

The new models retain the classic F-91W aesthetic with a compact resin case measuring 41.9 × 38.1 × 8.8 mm and weighing just 26 grams. Familiar features such as an LED backlight, stopwatch, countdown timer, five daily alarms, and water resistance are all present.

The key upgrade is the built-in motion sensor, which enables step tracking for up to 999,999 steps. The watch displays progress toward the daily goal on a six-level graph and includes a step reminder that nudges the wearer after prolonged inactivity.

Bluetooth connectivity adds several smart capabilities. When paired with the Casio WATCHES app, users can automatically adjust the time, access approximately 300 world time cities, view life-log data, simplify watch settings, and use a phone-finder feature. The combination of retro design and modern tracking makes the F-B100W a compelling option for those seeking a simple, lightweight fitness companion without sacrificing the classic Casio look.