Characteristics of Nokia 6670

Memory

8 MB of memory are shared dynamically between the phone book, a calendar, messages, images and applications

RS-MMC cards expansion connector (64 MB card in a standard kit)

A possibility to assign a photo to a name in the phone book
A possibility to keep Name, Surname (two lines), Company name, Position, Phone number, Mobile phone number, Fax and E-mail address for a name — total number of 8 fields (a possibility to increase the number at will).
The number of groups is not limited, a possibility to assign a name to several groups at the same time
SIM-card entries are stored separately, viewing them with the internal memory is impossible
Call lists, no any limits in the number of entries, all the entries contain besides the date and the duration of the call, a call type. A possibility to set a storage period for calls in the list (a month by default)
MMS up to 100 KB for a message