Based on our record, watchOS seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You can find the list of compatible watches all the way at the bottom of this page: apple.com/watchos/watchos-7 (it's right above the SDK section) Hope that helps clear up your confusion! Source: about 3 years ago
wasp-os - Firmware for smart watches based on the nRF52 family of microcontrollers (including Pine64 PineTime)
Reside - AI travel assistant that helps you find great hotels w/ SMS
InfiniTime - InfiniTime is an open-source, C++-based firmware OS specifically made for the PineTime smartwatch.
Eddy Travels AI Assistant - Make money from the travel recovery with a free AI assistant
InfiniLink - iOS Companion App for InfiniTime and the PineTime smartwatch
Bradley - Personal travel assistant