Codenamed Bandit, Lumia 1520 is speculated to have a 6-inch screen. Lumia 1520 will be the largest smartphone in Nokia's portfolio, as the company's current biggest smartphone has a 4.7-inch display. Lumia 1520 is said to be a top-end device, with features like a full HD screen, quad-core processor and 20MP rear camera.
Several companies are eyeing the market for large-screen smartphones, with devices like Acer Liquid S2, Huawei Ascend Mate and Samsung Galaxy Mega 6.3 present in this segment. Major manufacturers like Apple and HTC are also said to be working on smartphones with 6-inch screens.
Earlier, there were speculations that the company will be launching Lumia 1520 on September 26 at an event in New York. The company was expected to announce new devices including the phablet at the event to revamp its lineup of Lumia smartphones which use Microsoft's Windows Phone software.
Reports also suggest that apart from Lumia 1520, Nokia 10.1-inch Windows RT tablet, Sirius, may also be unveiled at the event.
Nokia and Microsoft are still operating as separate companies as the 5.44 billion euro deal, which was announced on September 3, has not yet closed.