Record-high pre-orders have been attributed to the inclusion of sales in China, where demand has been particularly high

Advance orders of Apple’s new iPhones are on track to beat the 10m units previous versions logged in their first weekend last year, a feat analysts have attributed to the inclusion of sales from China which is poised to overtake the United States as Apple’s biggest market.

Apple did not disclose the specific number of advance orders it received for the new iPhone 6s and 6s Plus, which have improved cameras, 3D touch and display technology that responds according to how hard users press their screens.

Related: Why Apple shouldn’t be selling a 16GB iPhone 6S or 6S Plus