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Phone Samsung SGH-X640 HTC Dash 3G / Snap (GSM) BlackBerry 7750
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ?
Battery 800 mAh 1,500 mAh ?
Processor ? 528 MHz Qualcomm S1 MSM7225 ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 2 megapixel -
Wide Camera - - -
Tele Camera - - -
Video Capture - ? -
Front Camera - - -
Weight 3 oz
(85g)
4.23 oz
(120g)
5.01 oz
(142g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.59" x 2.42" x 0.47"
(117 x 61 x 11.9 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Clamshell Slab Slab
Platform / OS (proprietary) Windows Mobile Standard BlackBerry OS
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

Data Technology GPRS HSPA 7.2 1xRTT
Features 
GPS / Location - n/a n/a
Accessibility
Adjustable Text Size - n/a n/a
Multiple Languages Yes n/a n/a
TTY/TDD (Digital) - - Yes
Alerts
Ringer Profiles - Yes Yes
Connectivity
Bluetooth - Yes -
USB - Yes Yes
Wi-Fi - Yes
802.11 b,g
-
Contacts
Picture ID Yes n/a n/a
Ringer ID Yes n/a n/a
Voice Dialing - n/a n/a
Customization
Custom Graphics Yes n/a n/a
Custom Ringtones Yes n/a n/a
Real-Music Ringers - n/a n/a
Data & Network
Data Tethering - n/a n/a
WAP / Web Browser Yes n/a n/a
Input
Predictive Text Entry Yes n/a n/a
Side Keys Yes Yes Yes
Text Keyboard, Hardware - Yes Yes
Memory
Memory Card Slot - Yes -
Messaging
Email Client - n/a n/a
EMS / Picture Messaging Yes n/a n/a
Instant Messaging - n/a n/a
MMS Yes n/a n/a
Text Messaging Templates Yes n/a n/a
Music
Music Player - n/a n/a
Productivity
Alarm Yes n/a n/a
Calculator Yes n/a n/a
Calendar Yes n/a n/a
To-Do List Yes n/a n/a
Voice Memo Yes n/a n/a
Software
Games Yes n/a n/a
Java (J2ME) Yes n/a n/a
Voice
Headset Jack (2.5 mm) Yes n/a n/a
Speaker Phone Yes Yes -
  Samsung SGH-X640 HTC Dash 3G / Snap (GSM) BlackBerry 7750
  X > < X > < X

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

 
Phone Samsung SGH-X640 HTC Dash 3G / Snap (GSM) BlackBerry 7750

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