4 ms·Agreed, for what we had in 2012, it was absolutely wonderful UI.by stackskipton 1y agoAgreed, for what we had in 2012, it was absolutely wonderful UI.GhosT078 1y agoAlso agree. Windows Phone 8.1 and 10 were great smartphone interfaces.adzm 1y agoWould have been great if it had apps, too.