Unlike its older brother W610, Sony Ericsson's latest W660 model doesn't feature EDGE connectivity, which fortunately has been replaced with the more powerful 3G technology. Now users can really choose what they would think will use more, W610's EDGE or W660's UMTS network. The 3G connectivity works almost at a max with data transfer speeds up to 314 Kbps download and 96 Kbps upload.

The handset features Bluetooth 2.0 with A2DP and transfer speeds reached a little bit over 100 KB/s. You can synchronize the phone with the PC through the USB cable, but be careful what kind of connection mode you choose if you want to transfer data from your memory card. Messaging capabilities are unlimited and the phone features full support for email client, which can easily handle POP3, IMAP4 and SMTP.

The tri-band (GSM 900 / GSM 1800 / GSM 1900) network compatible handset has a good GSM signal reception. Sound is pretty clear, but a little bit low when you're not using the earphones for calls.

Processor and Memory

Sony Ericsson W660 features an ARM9 family processor which runs at speeds up to 118 MHz. The low power CPU insures low energy consumption, but it is also powerful enough to run any Java compatible application you can think of. Gaming experience is smooth and immersive with no lags or long loading times.

Those that are used with Sony Ericsson's market policy would've probably expected to have low internal memory at their disposal. The 16 MB user memory will surely force you to buy an expensive M2 memory card to expand the storage space. Fortunately the sales package comes with a 512 MB M2 memory card, but if you're not satisfied you'll have to buy another one.

Multimedia

This is the part where Sony Ericsson's Walkman series excels and W660 is no different. While external speaker sound is not what it should be, the moment you put it in your earphones you'll immerse in a world of finely vibes. The earphones offered in the sales package are again some of the best on the market. In fact I don't think that you can find better earphones in any mobile phone package than those that come with Sony Ericsson's Walkman series. Because the earphones don't need too much volume to drive you crazy, the external speaker doesn't sound too loud with volume set to the maximum.

The phone comes with an integrated Walkman 2.0 music player that features a great equalizer, stereo widening function and different visualization effects. I have used the MegaBass mode with the equalizer and the sound is absolutely crazy. It is much better than Nokia's 3250 or 5700 Xpress Music, but hey, we're talking about a Walkman series phone. There's also a stereo RDS radio which can memorize up to 20 stations. Signal reception is very good, while the sound is even louder than the music player. Both music player and

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Sony Ericsson W660 technical specifications Processor and Memory, Multimedia