• Protected against splashes, dust, and bumps
• Tri band (EGSM 900/GSM 1800/1900)
• High-resolution colour display
• Downloadable personal applications via Java™ technology
• GPRS (General Packet Radio Service
• HSCSD (High Speed Circuit Switched Data)
• WAP 1.2.1 browser (via GRPS or CSD)
• Multimedia messaging with compatible devices
• Flashlight
• Stereo FM radio
• Integrated handsfree speaker
• Polyphonic (MIDI) ringing tones
• Colourful wallpapers
• Stopwatch, alarm clock
• Digital clock screensaver
• Countdown timer including interval timers
• Calculator, currency converter
• Calendar, to-do list
• Calorie counter
• Thermometer
• Automatic volume control
• Sound meter
• Connectivity options: IR and cable

The thermometer, calorie counter and sound meter in the Nokia 5100 phone give approximate values only and they should not be used for professional purposes.

• Weight: 104 g (with BL-4C battery)
• Max. dimensions: 108.5 x 49.5 x 22 mm, 89 cc

• High-resolution colour display
• Supports 4096 colours, 128 x 128 pixels
• 4-way scrolling
• 5 lines for text in basic mode with 16 pixel font
• User adjustable display brightness
• Colour wallpaper

• Xpress-on™ shells provide protection against splashes and dust
• Also the inner module has resistance to splashes and dust when the shells and key mat are mounted
• Improved durability to offer protection against accidental bumps
• Bottom flap gives extra protection for the connectors

The following functions use shared memory that is dependent on the data quantity per item and shared memory available at a time in the Nokia 5100:

• Phonebook – up to 300 entries
• SMS – up to 150 text messages or 50 picture/concatenated messages
• Calendar notes – up to 250 entries
• To-do list – up to 30 entries
• Fixed ringing tones – 11 preset, not removable

The following features share a memory pool of 725 kB:*

• MMS messages – max size 45 kB per MMS message
• Ringing tones in Gallery – 20 preset, all removable
• Images – 10 preset, all removable
• Java™ applications – 4 preset, max download size 64 kB per application

* Shared memory: The following features in this phone may share memory: Phone book, text and multimedia messages, images and ringing tones in gallery, calendar, to-do notes, and Java games and applications. Using any such features may reduce the memory available for any features sharing memory. This is especially true with heavy use of any of the features (although some of the features may have a certain amount of memory specially allotted to them in addition to the amount of memory shared with other features). For example, saving many images, bookmarks, Java applications, etc. may take all of the shared memory and your phone may display a message that the memory is full. In this case, delete some of the information or entries stored in the shared memory features before continuing.

• Text messaging: concatenated SMS, send and receive up to 3 messages, (459) 160+146+153 characters, in Unicode 70+63+63 per message
• Predictive text input: support for all major European languages
• Templates: quick and easy sending of pre-defined messages
• Picture messaging: send pictures with text to other compatible phones. 10 predefined pictures in the phone, 5 empty for downloads, all replaceable.
• Multimedia messaging: receive messages containing a text, an audio file and a image, which can be saved as wallpaper and ringing tone; send and forward messages containing images and text to other compatible phones.
• Mobile Chat: based on standard SMS. All previous written messages from both persons are visible on screen. Chat messages are not saved on the SIM card.

• 21 polyphonic and 10 monophonic tones preinstalled

• Support for download of games and applications
• Converter application (supports most common currency, area, length, mass, temperature, and other conversions)
• Sky Diver, Triple Pop, and Bounce games
• All user removable

• Speed dialing: for up to 9 names (key 1 is always for voice mail)
• Last number redial from dialed calls list (dial-key brings out the dialed calls list)
• Automatic redial (max 10 attempts)
• Automatic answer (works with headset only)
• Emergency calls to 112 without SIM-card and with key locked phone
• Call waiting, call hold, call divert, call timer
• Automatic and manual network selection
• Closed User Group
• Fixed Dialing Number, allows calls only to predefined numbers

• EGSM 900, GSM 1800, and GSM 1900 networks in Europe, Africa, Asia, North, and South America
• Automatic switching between bands; please check roaming possibilities from your service provider.