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Phone Nokia 8890 Samsung SGH-X400 Samsung SGH-A657 Samsung SGH-X640
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? ? ?
Display Resolution & Type ? 128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery ? 620 mAh 1,420 mAh 800 mAh
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - - - Yes
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - -
Front Camera - - - -
Weight 3.21 oz
(91g)
3.17 oz
(90g)
4.34 oz
(123g)
3 oz
(85g)
Dimensions 3.94" x 1.73" x 0.71"
(100 x 44 x 18 mm)
3.39" x 1.81" x 0.8"
(86 x 46 x 20.3 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
Form Factor Slide Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology - GPRS HSDPA 3.6 GPRS
Features 
Flashlight - - Yes -
GPS / Location - - Yes -
Ruggedized - - Yes -
Accessibility
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) - - Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles Yes - - -
Connectivity
Bluetooth - - Yes -
Infrared (IR) Yes Yes - -
USB - - Yes -
Contacts
Picture ID - Yes Yes Yes
Ringer ID - Yes Yes Yes
Voice Dialing Yes - - -
Customization
Custom Graphics - Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers - - Yes -
Data & Network
Data Tethering Yes - Yes -
WAP / Web Browser - Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Memory
Memory Card Slot - - Yes -
Messaging
Email Client - - Yes -
EMS / Picture Messaging - Yes - Yes
Instant Messaging - - Yes -
MMS Yes - Yes Yes
Text Messaging Templates - Yes Yes Yes
Music
FM Radio - Yes - -
Music Player - - Yes -
Productivity
Alarm Yes Yes Yes Yes
Calculator Yes Yes Yes Yes
Calendar Yes Yes Yes Yes
To-Do List - Yes Yes Yes
Voice Memo - - Yes Yes
Software
Games Yes Yes Yes Yes
Java (J2ME) - Yes Yes Yes
Voice
Headset Jack (2.5 mm) - Yes - Yes
Push-To-Talk - - Yes -
Speaker Phone - - Yes Yes
  Nokia 8890 Samsung SGH-X400 Samsung SGH-A657 Samsung SGH-X640
  X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia 8890 Samsung SGH-X400 Samsung SGH-A657 Samsung SGH-X640

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