This slim device is a successor of the U880, however, has a A2DP profile, which helps connecting wireless headset.
Announced in 2006
Class: business, fashion
Position in the line: above LG U880
Rivals: BenQ S80  

Specifications

General features
GSM900/1800/1900 UMTS (2100 MHz)
Battery type Li-lon
talk mode up to 4 hours
standby mode up to 297 hours
External screen graphical (TFT), the resolution of 96x96 pixels, shows 65000 colours
Internal screen TFT, has the resolution of 176x220 pixels, shows up to 262000 colours
Java (MIDP 2.0)
Colours: silvery (other variants are possible)
Weight: 99 gramms
Dimensions: 98,8x49x17.8 mm

Memory
Phonebook in internal memory + SIM memory, you can select a user group and an icon. Photo for incoming call signal.
Call log of last 10 calls of all types
Phone memory 75 MB (dynamically shared)
Expansion slot for TransFlash memory cards (microSD) 


Call management, ringing tones
Vibracall
64 tones polyphonic call signal (3D stereo sound)
??3/AAC file as a call melody
Speed dial for 8 numbers
Minute minder
Automatic redial
User profiles 


SMS
EMS/MMS
Predictive text input (Russian dictionary)
Concatenated messages 


Connectivity
WAP 2.0
VOD, AOD
GPRS class 10
E-mail client
Bluetooth 1.2 (A2DP-profile)
Synchronization with PC (USB, Bluetooth) 


Organizer and extras
Integrated 1.3 MP with flash, recording video clips
Dictaphone
??3/MPEG4 player
Screen savers, themes
Time, date, alarm clock, World time
Calculator, unit converter
Organizer with notes and reminders, calendar monthly view and weekly
Games

Review

the U890 is virtually the same as the U880, with a good range of features - the kind of things you would expect from a high-spec 3G phone. Highlights include a 1.3 megapixel camera with flash and video camera, plus high quality internal and external displays. The U890 offers enhanced support for music playback. With support for MP3, AAC, Enhanced AAC+, AMR and WAV formats, dedicated exterior music buttons and plenty of memory in the form of a TransFlash memory card slot (expandable to 512 Mbytes), this is an excellent music player device. The U890 supports stereo music via Bluetooth, so you can listen to music wirelessly in full stereo with a pair of compatible headphones.

Source: http://www.mobile-phones-uk.org.uk/