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Phone Samsung SGH-X640 Nokia 6255i / 6256i HP iPAQ Glisten HTC G2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 2.5" diag.
4 : 3
3.7" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~160 ppi)
AMOLED
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz
Battery 800 mAh 1,070 mAh 1,590 mAh 1,300 mAh
Processor ? ? 528 MHz Qualcomm MSM7200a (ARM11) 800 MHz Qualcomm S2 MSM7230
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes Yes 3 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? QVGA (320 x 240) 720p HD
Front Camera - - - -
Weight 3 oz
(85g)
4.23 oz
(120g)
5.29 oz
(150g)
6.5 oz
(184g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.36" x 1.87" x 0.97"
(85 x 47 x 24.6 mm)
4.44" x 2.47" x 0.53"
(113 x 63 x 13.4 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) Windows Mobile Professional Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology GPRS 1xRTT HSDPA 3.6 HSPA 14.4
Features 
GPS / Location - Yes n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible - Yes
M4 (very compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - Yes - -
Connectivity
Bluetooth - Yes Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot - - n/a n/a
USB - Yes Yes
Micro-USB
Yes
Wi-Fi - - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing - Yes n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - Yes n/a n/a
Data & Network
Data Tethering - Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Stylus - - Yes -
Text Keyboard, Hardware - - Yes Yes
Touch Screen - - Yes
Resistive
Yes
Capacitive
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - Yes n/a n/a
EMS / Picture Messaging Yes Yes * n/a n/a
Instant Messaging - - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - - Yes Yes
Music Player - Yes * n/a n/a
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes Yes n/a n/a
Voice Memo Yes Yes n/a n/a
Software
BREW - Yes * n/a n/a
Games Yes Yes n/a n/a
Java (J2ME) Yes Yes * n/a n/a
Voice
Headset Jack (2.5 mm) Yes Yes n/a n/a
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Nokia 6255i / 6256i HP iPAQ Glisten HTC G2
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Phone Samsung SGH-X640 Nokia 6255i / 6256i HP iPAQ Glisten HTC G2

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