A new GitLab project lets you turn the Casio F91W watch into a Bluetooth-capable smartwatch. All parts are replaced apart from the casing, and an upgraded OLED screen is installed. You can use the modified watch for Bluetooth calling and to receive notifications. The project has now been handed over to the community.
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Is it possible to make a basic watch like the Casio F-91W Bluetooth and program it to show my phone's notifications? - Quora
Is it possible to make a basic watch like the Casio F-91W Bluetooth and program it to show my phone's notifications? - Quora
How I Hacked CASIO F-91W digital watch
Casio F91W turned into Bluetooth capable smartwatch with GitLab project - News
Is it possible to make a basic watch like the Casio F-91W Bluetooth and program it to show my phone's notifications? - Quora
How I Hacked CASIO F-91W digital watch
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