The firm has said that it intends to promote the 8X, which features a 4.3" (10.9cm) display, as its flagship device alongside the Android-powered One X. The firm is also offering a smaller 8S model with a 4" (10.2cm) screen.
HTC's share price has fallen more than 50% since February after the firm experienced weak sales of earlier models despite positive reviews. Analysts have said the firm had a weak advertising campaign which was compounded by the fact that its South Korean rival, Samsung, had a much bigger marketing budget.
Nokia and Samsung have already shown off alternative Windows Phone devices which will launch after Microsoft releases the operating system.
HTC said the 8X would launch in 50 countries in early November across 126 mobile operators, while the 8S would be available in 52 countries with more than 146 operators.
Such detail was notably lacking at Nokia's recent Lumia 920 launch, where it did not confirm the date or number of countries the smartphone would be sold in.
Source: BBC News
