Sony Xperia SL photo leak reveals fuller colour palette

Leaked images thought to show the upcoming Sony Xperia SL is a wider range of colours than previously predicted have surfaced on the web, courtesy of the Taiwanese arm of popular Chinese gadget site ePrice.

Not much is known about the Xperia SL other than that it is likely to represent a minor refresh of Sony's present flagship smartphone, the Xperia S, which debuted in the UK back in March. The SL is expected to launch later in the year ahead of the lucrative holiday shopping season, possibly alongside the Xperia J.

Cosmetically, it will closely resemble the current-generation S-model, but will come in a zestier range of colours, with pink (below) and blue iterations popping up last month. Now, press photos purporting to show more conservative options (top) have popped up, showing the Xperia SL in black, silver, and white.

The biggest change between the two phones is expected to be an engine room upgrade, with the Xperia SL rocking a more powerful dual-core Qualcomm Snapdragon S3 processor that clocks in at 1.7GHz.

Sony's fans will also hope that the new device comes pre-loaded with the latest Android OS, Jelly Bean. Its predecessor the Xperia S disappointed many by running Gingerbread to begin with, only starting to get a taste of Ice Cream Sandwich at the end of June.

Recently, Sony has been forced to backtrack on an announcement that its 2011 Xperia mobiles would not get a trip to the sweet shop, yesterday claiming that earlier comments were made "in error" and that it is "actively investigating" the possibility of Jelly Bean refreshes for older devices.

Wondering when your Android smartphone might be looking at a Jelly Bean upgrade? Our expert mobile editor Rob Kerr ventures his opinion on when owners of Samsung, Motorola, LG, HTC and, yes, Sony handsets might enjoy a visit from the candyman.