The high-end handset is the Lumia 930, which was launched in various markets (including the UK) earlier this month. The Lumia 930 promo video concentrates on the benefits of Microsoft’s OneDrive, which lets you to “bring everything together” whenever you’re using your phone, your Windows tablet, or your Windows PC. Microsoft currently offers 15GB of free storage space to all new OneDrive users, allowing them to upload and sync music, videos, documents, and so on.
As for the low-end Windows Phone 8.1 device that has a new promo video, this is the Lumia 530. Expected to go on sale next month, the Lumia 530 might be more important to Microsoft than the Lumia 930, because it’s very cheap (starting at around $100) and could reach millions of customers. The Lumia 530 promo video suggests that the handset will offer “power for the people”.