The hype around Samsung Galaxy S4 is so far so good with speculations caused by leaked specifications creating lots of curiosity among gadget lovers around the world. The South Korean technology giant's next generation smartphone will be launched in a couple of days' time but the biggest question is whether it will beat its predecessor Galaxy S3 in terms of sales and pre-order.

Samsung Galaxy S3, which was released on 3 May at Samsung Mobile Unpacked 2012 in London, has hit 40 million sales mark and is still doing good business. About 30 million units were shipped till November last year, according to a report by CNet

It was reported that Samsung got nine million pre-orders for its flagship device Galaxy S3, breaking Apple iPhone as the fastest selling gadget in history. It went on to sell 20 million units in just 100 days, which was way ahead of iPhone 5.

It seems the big challenge for Samsung Galaxy S4 is not Apple iPhone 5 but its predecessor Galaxy S3, as it will be herculean task for the next generation smartphone to beat its pre-orders and sales.

Samsung Galaxy S4 is scheduled to be launched in New York City on Thursday. The South Korean electronics giant last released its smartphone series in the U.S. in 2010. The move is believed to be a strategic move to counter the sales of Apple's iPhones. has revealed a few screenshots of Samsung Galaxy S4 taken by Israeli website, which shows the new generation smartphone for U.S. variant sporting a 5.0-inch full HD Display, 13-megapixel camera and 1.8GHz quad-core processor with LTE and wireless charging capability, while the international variant of the device features 8-core Exynos Octa CPU. The site also reported that the new smartphone will have an AMOLED full HD display made from green PHOLED (Phosphorescent Organic Light Emitting Diodes) material.

The leaked screenshots also features TouchWiz interface Nature UX 2.0 with white background, Android 4.2.1 Jelly Bean OS, Smart Pause, Smart Stay, Smart Rotation and advanced eye-enabled text browsing software called 'Smart Scroll'. It may also feature a 'floating touch technology' which uses finger movements as the cursor.