Sony Ericsson m600i was introduced in 2006. CNET reviews the Sony Ericsson m600i and writes about features, “Balancing work with leisure, the M600i has a music and a video player with support for a plethora of formats including MP3, AAC, MPEG-4, MP3, 3GPP and Real Media. However, Windows Media Player fans won’t be able to listen to WMA tracks. Even though you can’t take photos with the M600i, it nonetheless has a picture viewer for any snaps you’ve downloaded or received via MMS or Bluetooth. We found a handful of applications pre-loaded on the M2 card in the box, the best of the bunch being Gameloft’s Pro Golf 2005 3D. Sony Ericsson’s PC Suite software supports Windows - no Mac or Linux support, yet — letting you sync Outlook, Lotus Notes and Internet Explorer.”

MobileBurn reviews the Sony Ericsson M600i and writes, “The QWERTY keyboard on the M600 is unusual in that the right and left edge of each convex shaped key serves a different purpose. As such, the A and S letters are on the same key, instead of on neighboring keys. The shift key located in the bottom left corner of the keypad works as one would expect, so that capital letters and additional special characters can be typed. The ALT key, in the lower right hand corner of the keypad, is used for accessing the numeric keypad digits and symbols. When used with the ALT key (which can be locked on), the number keys work like they do on regular phones: you can still push on either edge if you like, but you can simply press the entire key down to get the number as well.”

InfoSync reviews the Sony Wricsson M600i and writes, “the Bluetooth functionality of the M600i in turn ties in with its media capabilities, which include the playback of MP3 and AAC formats as well as video at 30 FPS. Another highlight of the device is its dual function thumbboard, which - much like that of Palm’s Treo 700w - contains a numerical keypad with in its QWERTY layout, and is also enhanced by the presence of continuous spell checking and word completion. Other features related to input include a 3-way jog dial and handwriting recognition.”

PC Authority reviews the Sony Ericsson M600i and writes, “Things don’t improve when it comes to the interface, either. It’s not only laggy, it’s cumbersome. For instance, it’ll take a good three seconds before your speed dial list pops up, unless it’s already been opened and cached into memory. Every program shares this caveat, and you can watch from the Task Manager as your everyday use abducts perfectly good memory.”

My-Symbian reviews the Sony Ericsson M600i and writes, “the M600 is the first device available to operate on UIQ 3.0 and Symbian OS 9.1. This is an entirely new platform with many changes from UIQ 2.1. UIQ 3.0 is not backwardly compatible with UIQ 2.x applications as a result of a new security model, new kernel and compiler. What I can tell you with some certainty is UIQ has received a major facelift in terms of appearance and also the functionality has been significantly modified.”

All About Symbian reviews the Sony Ericsson M600i and writes, “Alongside the Java MIDP client, Sony Ericsson are also including the Flash Lite runtime with the device. The specifications note this is for “impressive animated wallpapers, menus and other graphic elements” although the capabilities of this runtime (a subset of the full Flash spec) should allow a range of simple applications and games to run on the M600i. Java and Flash apps are going to be vital at launch, given that Symbian OS 9.1 is powering the phone. The number of C++ native applications initially available is going to be very small – existing UIQ apps will need to be recompiled and in many cases the source code will need altering.”