The Sony Ericsson W910i is a QuadBand HSDPA/EDGE-powered slider model Mobile Phone with a 2-MegaPixel camera and comes with the Walkman Player v3. The RIM BlackBerry Curve 8310 adds GPS capabilities to the already impressive and sleek messaging smartphone. You also get a 2-megapixel camera, Bluetooth, and good call quality.

The Sony Ericsson W910i packed with incredible features, including 2 megapixel camera with 2.5x digital zoom, TrackID, SMS, MMS, Email, Animated wallpaper and web browser. The Black Berry Curve 8310 packed with incredible features, including a 2 megapixel camera, a multi-media player, built-in GPS, expandable memory, Voice Dialling, BlackBerry Maps and trackball navigation. Plus, you get all the core functionality you’ve come to expect in a BlackBerry smartphone email and text messaging, instant messaging, web browser and advanced phone functionality.

By Comparing Sony Ericsson W910i is rated for 9 hours of talk time and as long as 400 hours of stand by time. W910i support MP3 for entertainment. Where as in BlackBerry Curve is rated for 4 hours of talk time and as long as 17 days of standby time.For more entertainment, there's also a media player onboard that supports MP3, AAC, MIDI, and WAV music files and AVI, MP4, MOV, and 3GP video formats. There's 64MB of flash memory, but you should store multimedia files on a microSD card since they tend to be memory hogs.