Tizen is an operating system based on the Linux kernel and the GNU C Library implementing the Linux API. It works on a wide range of devices, including smartphones, tablets, in-vehicle infotainment devices, smart TVs, PCs, smart cameras, wearable computing (smartwatches), Blu-ray players, printers and smart home appliances. Developed by Linux Foundation
License: Open Source
Ubuntu Touch is a community-driven, open-source mobile OS focusing on privacy and a user-friendly experience. Tizen OS, backed by Samsung, offers strong integration with their devices and a wider range of supported hardware, but is limited to Samsung's ecosystem.