The E440 Series is the higher specced of the two newbies, with the ability to handle video as well as music, while the B140 Series is more of a Shuffle-esque player aimed at active types.
The former of the duo packs a 2-inch colour LCD screen, FM radio, Sony's Clear Audio technology and a 5-band equaliser into a 9.3mm thin shell.
Of course, it is capable of playing back a wide range of both music and video files, and you'll get up to 30 hours battery life for your music or 6 hours of video playback on a single charge.
The B140 on the other hand works as a straight up music player, that can hook up to your computer via a direct USB connection to your computer. To load up your music, simply drag-and-drop your tracks and your ready to go.
However, you don't need a PC to get music onto the B Series. Hook it up via USB to any mini audio system that supports USB Mass Storage Management and Up-Streaming and get music straight from your CD collection without ripping them to your PC first.
As far as sound goes, there's a choice of five equaliser modes, as well as a bass boost button to tailor the sound to what you're listening to, and while you're deciding on that, you can use the Zappin feature to get a few recognisable seconds of a song before choosing to play it.
Finally you'll get an FM radio with a nice feature that will allow you to record your favourite broadcasts to listen to again later.
As for battery life, you can get up to 18 hours music playback, but for those in a hurry – plug it in for 3 minutes and you'll get a generous 90 minutes of music.
Both players are available in a choice of black and red and will be available from the end of July. Pricing is to be confirmed but we'll get all the deets to you when we get them. Until then check out our hands on video with the X Series and let us know what you think below.