Nokia will soon release two new Lumia-branded Windows Phone models in Australia, with the Lumia 900 heading to Optus and the Lumia 610 to Boost Mobile and Vodafone.

(Credit: Nokia)
Unlike the popular version of the 900 on the AT&T network in the US, the 900 will not be 4G capable in Australia, though it will benefit from dual-carriage HSPA+ data speeds, with a maximum theoretical download speed of 42Mbps.
Optus will offer the 900 in June on a range of plans, including $0 upfront for AU$60 per month. It will be also available through major electronics retailers for AU$699. The Lumia 610 will be available in June through Boost Mobile, and then on the Vodafone network in July. It carries a AU$329 asking price.
Both phones run on Windows Phone 7.5, the latest version of the Microsoft-developed operating system, but are powered by different hardware. The 900 uses a 1.4GHz Qualcomm processor and packs a 4.3-inch WVGA AMOLED display. The 610 also has a WVGA resolution, but its screen is a standard LCD panel. An 800MHz processor is employed in the budget-priced Lumia 610.