https://www.bleepingcomputer.com/news/microsoft/microsoft-begins-testing-of-the-your-phone-app-in-windows-10/

Microsoft had first introduced the Your Phone app at its Build developer conference in May this year as a way to integrate a user's mobile devices with their Windows 10 PCs. The Your Phone app, which will be used to synchronize data between a mobile device and Windows 10, is now gradually rolling out to the Windows Insiders in the Fast Ring.

With the most recent Windows 10 Redstone 5 build, if you are a Windows Insider and own Android devices, you will soon be able to use Microsoft's 'Your Phone' app to synchronize photos between Windows 10 and Android devices. Unfortunately, this feature is not quite live yet, but will be enabled server side in Build 17728 or newer.