You can now upgrade a retro Casio watch with Bluetooth, step tracking, and games

For the first time since it launched 36 years ago, the iconic Casio F-91W digital watch is getting some smart upgrades — but not from Casio. The Ollee Watch One is a replacement mainboard for the Casio F-91W, A158W, and several other watch models that can be installed without the need for a soldering ironThe VergeRead More