If to compare this model to its forerunner Nokia 3510 we'll see that the phone got a full functional MMS (not only receiving but sending also). The main thing is that a color display showing up to 4096 colors and supporting HSCSD appeared... All the rest characteristics are mostly similar. Also several new panels both standard and graphic were produced.
Class: middle
Position in the line: above Nokia 3510
Rival phones: SonyEricsson T300

Specifications

Common features
Made in Finland
Announced in September 2002, availability in the 4th quarter, 2002
eGSM900/1800
Battery 950 mAh Li-Ion(BLC-2)
Talk time 2,5 - 4,5 hours, standby time up to 270 hours, fullcharging time - ACP-8/ 2 h. 30 min.
High-resolution, illuminated full-graphics colour display, 4096 colours, resolution 96x65 pixel, up to 4 lines of text plus line with service info
Wallpaper, screensavers (analogue clock)
4 standard colours
Java
Interchangeable covers Xpress-on™
Weight: 106 g
Dimensions: 118 x 49.6 x 17.1 mm

Memory
Phonebook: up to 500 names with 3 numbers and 1 text. Maximum 5 numbers and 4 text items can be stored under one name, but this leaves room for fewer name entries. Similarly, more names can be stored if not all of the numbers and/or texts are filled in (dynamic memory)
Message: up to 150 text only messages, 50 picture messages, or any combination of these.
Calendar notes: 100 - 500 depending on length and other memory usage
Call logs for last 10 dialled, missed, received calls with data and time stamp

Call management, ringing tones
Vibrocall
34 fixed tones (both polyphonic and monophonic) The number of variable tones (composed or downloaded) depends on the available phone memory
Voice dialing: for up to 10 names
Speed dialing: for up to 8 names
Automatic redial (max 10 attempts)

SMS
Text messaging: concatenated SMS - send and receive message up to 761 characters in one message.
SMS Chat
Predictive text input for over 10 languages.
Support for major European languages.
Templates for quick and easy sending of pre-defined messages.
Picture messaging: sending graphics with text to other compatible phones.
Multimedia messaging: sending, forwarding and receiving messages containing a text item, a ringing tone and graphics.
Picture messaging: sending graphics with text to other compatible phones.

Connectivity
WAP 1.2.1, WAP Push
WAP over GPRS
GPRS (3+1)
HSCSD

Organizer and extras
Wallpapers. screensaver
Timed profiles, downloadable profiles
Time and alarm clock
Calculator, Currency converter
Stopwatch, Countdown timer
Organizer with support of different kind of events
Games - just Java games

Review

The Nokia 3510i updates the Nokia 3510 with a colour screen and downloadable Java games. Like the 3410 and 3510, the Nokia 3510i has all of the features that made the 3210/3310 so popular - downloadable ringtones, Xpress-on™ covers and great ease of use. It also has new features that were first introduced on the Nokia 3510 - polyphonic (MIDI) ringtones, Multimedia Messaging Service (MMS) and GPRS (fast, always-on internet access).The X-press-on covers available for the Nokia 3510i include some specialised functional covers, such as the gaming cover. Snap on the gaming cover, and you can really enjoy the 5 built-in games, which make good use of the phone's polyphonic sound and vibration effects.