The DIY version of the Ollee Watch one, which requires you to already have one of six different supported Casio watch models ...

The Ollee Watch features an ARM Cortex-M4/M0+ low-power processor with support for Bluetooth Low Energy and a programmable NTAG213 NFC tag (although this is said to only be compatible with the F-91W ...

Electronic enthusiasts interested in upgrading a classic Casio wristwatch, transforming it into a hackable, programmable smartwatch may be interested in the Sensor Watch object over on the Crowd ...

[Matteo] has been a fan of the Casio F-91W wristwatch virtually since its release in 1989. And not without good reason, either. The watch boasts reliable timekeeping and extremely long battery life ...

The Casio F-91W is easily one of the most iconic and popular watches worldwide. But what’s cool about having the same exact thing as millions of other people? Not much, unless of course you modify it ...

Few affordable watch brands are as widely respected as Casio. It’s the best place to go for a good solid watch which doesn’t cost a fortune but still feels cool. Think about it: whenever you spot a ...

If you try and reimagine a timeless classic, please reconsider. A perfect example of something that doesn’t need fixing but has been taken on as a design challenge is the Casio F-91W. Created in 1989, ...

Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more Recently, Casio expanded the F-91W line to make the watch more of a fashion item. Back ...

The Casio F-91W is a classic digital wristwatch that’s been in constant production since it was first released in 1989. With a $20 starting price, the watch offers a water resistant design, an LED ...