What about Cortana?

Cortana is Microsoft’s voice-assistant equivalent to Siri. However, Cortana mostly runs on Windows PCs, which means that it’s a lot more desk-bound than Siri. We have heard that Harmon Kardon is working on a speaker called Invoke, which is designed to bring Cortana into living rooms at last. This means that 2018 will see a huge four-way battle play out between Apple, Amazon, Google, and Microsoft.