If you pair your Vector Watch to a Windows Mobile device, you’ll want to make sure that your smartphone runs Windows 10 Mobile. While the current version of the Vector Watch app supports both Windows 10 and the older Windows Phone 8.1, the next version will drop support for the older operating system to focus solely on Microsoft’s latest one.
The Vector team confirmed the move to one of their users in an email:
We would like to inform you that we have decided change our approach to the Windows Phone app from a software architecture point of view, more precisely reworking our app from the ground up. This decision is a repercussion of the fact that we want to bring the Windows Phone community the top-level, highly functional product it deserves, both from a hardware, as well as a software point of view. Additionally, we will be focusing on Windows 10 from v1.1 onward, seeing how virtually every Lumia flagship and most of the post 2014 models are upgradeable to Windows 10.
App version 1.1 for Windows will also temporarily remove notifications from EPSN, BBC and The Economist due to lack of regular updates:
This issue is due to the fact that there is a lack of support for push notifications from the Parse, seeing how on the iOS and Android platform we have encountered no such issues. Thus, push notifications are being sent twice from the Microsoft servers. Until we have a valid fix for this issue, we cannot, in good conscience, release a faulty software product. We apologize for any sort of inconvenience this issue might have caused!
Vector Watch expects to release a beta version of the new app on April 20th. A production version is expected to follow on April 27. The new Vector Watch app will be available as a free download from the Windows app store.
Thanks in large part to its monochrome display, the Vector Watch is able to achieve a battery life of up to 30 days.
Source : Windows Central