At the Mobile World Congress 2018 in Barcelona, which runs from February 26 and runs through March 01, the Finnish company Jolla announced the release of the Sailfish 3 operating system, which has several improvements, including support for OTG, Bluetooth LE and VoLTE, and resembles a simplified one Android OS Sailfish 3 is designed for outdated smartphones and conventional push-button mobile phones, which are weak by modern standards. The new product is 30% faster than the previous version of the OS, the company also promised \The whole essence and attractiveness of the development lies in the fact that with its help some applications developed for Android can be installed on the most low-end mobile devices from the budget segment. It is very unlikely that the Sailfish 3 platform will ever become a competitor for Android Go (a “stripped down” version Android) designed for cheap and weak smartphones. Sailfish 3 only partially makes a button phone look like a smartphone, for example, allowing you to send messages to Facebook or WhatsApp. The new Sailfish 3 operating system will become available to users tentatively this fall. Also, OS compatibility with Sony Xperia A2, Gemini PDA, Russian Inoi brand tablets (T8 and T10) and all previously released gadgets on Sailfish OS are announced.