GoKawiilUna launches modular, repairable GPS running watch with open-source design
Una has released a 46mm GPS running watch built from six separate, user-replaceable modules held together with Torx T3 screws, including distinct display, GPS, Bluetooth, PPG sensor and core compute modules. The core runs a Cortex-M33 microcontroller with 2.5MB of RAM and 4GB of eMMC storage on FreeRTOS, and Una has published its software, housing and circuit board designs on GitHub alongside a developer forum.