The Register: The phone, which is now available to buy in the UK, retains the i620′s slider design. Specifications provided by Vodafone are annoyingly vague, though the network provider does state that the i640 is a tri-band GSM/GPRS handset that also does 3G. It also has a two-megapixel camera and integrated memory card slot.
The i620, which came to Vodafone in July last year, has all these features.
From the pictures provided, it’s probably fair to assume that the i640 still measures 95 x 60 x 16mm and has a 320 x 240 pixel resolution display. Battery life seems to have been given a little boost on the i640, though, jumping to six hours talk time and 380 hours standby life, compared to 4.3 hours talk time and 350 hours standby on the i620.
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