Limited run
Kepler Watch
A complete, ready-to-wear watch; no donor watch needed. The familiar shape of a popular digital watch, rebuilt from the ground up around...
OLED · BLE · Coin cell
Kepler replaces the movement of a popular digital watch with a crisp OLED and a Bluetooth brain; it keeps time to the second and, on the side, mirrors what matters on your phone. Three buttons. One coin cell. No subscription.
Based on the MIT-licensed F91-Kepler design (Pegor Karoglanian) · hand-built · no subscription

Calls, texts, email and voicemail show up on the watch; the last five notifications stay available. Plus music control, find my phone, weather and a picture of your own from the app.
Set the time right on the watch, stopwatch, timer, flashlight, silent alarm and its own temperature on the Info screen. Ten screens, three buttons, one coin cell.
User-replaceable CR2016 coin cell, no charging. No account, no cloud, no subscription. Built on the MIT-licensed F91-Kepler design; the Android app is open source.
Limited run
A complete, ready-to-wear watch; no donor watch needed. The familiar shape of a popular digital watch, rebuilt from the ground up around...
Limited run
The Kepler module is the heart of the watch: the main board with the CC2640R2F Bluetooth chip and the OLED display flex,...