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Phone Samsung SCH-A220 BlackBerry 7750 Huawei M750
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? 2.8" diag.
4 : 3
Display Resolution & Type 128 x 128 pixels
LCD (STN)
240 x 240 pixels
LCD (Color)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery ? ? 1,150 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - - 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture - - -
Front Camera - - -
Weight 3.25 oz
(92g)
5.01 oz
(142g)
3.92 oz
(111g)
Dimensions 2.87" x 2.09" x 0.94"
(73 x 53 x 23.9 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
4.21" x 2.25" x 0.59"
(107 x 57 x 14.9 mm)
Form Factor Clamshell Slab Slab
Platform / OS (proprietary) BlackBerry OS (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1700, 1900

Data Technology 1xRTT 1xRTT 1xRTT
Features 
GPS / Location Yes n/a Yes
Accessibility
Hearing Aid Compatible - - Yes
M3 (mostly compatible)
Multiple Languages Yes n/a -
TTY/TDD (Digital) - Yes Yes
Alerts
Ringer Profiles - Yes -
Connectivity
Bluetooth - - Yes
USB - Yes Yes
Contacts
Picture ID - n/a Yes
Ringer ID Yes n/a Yes
Voice Dialing Yes n/a -
Customization
Custom Graphics Yes n/a Yes
Custom Ringtones Yes n/a Yes
Data & Network
Data Tethering Yes n/a -
WAP / Web Browser Yes n/a Yes
Input
Predictive Text Entry Yes n/a -
Side Keys Yes Yes Yes
Stylus - - Yes
Text Keyboard, Hardware - Yes -
Touch Screen - - Yes
Resistive
Memory
Memory Card Slot - - Yes
Messaging
Email Client - n/a Yes
Instant Messaging - n/a Yes
MMS - n/a Yes
Text Messaging Templates Yes n/a Yes
Music
Headphone Jack (3.5mm) - - Yes
Music Player - n/a Yes
Productivity
Alarm Yes n/a Yes
Calculator Yes n/a Yes
Calendar Yes n/a Yes
To-Do List Yes n/a -
Voice Memo Yes n/a Yes
Software
BREW - n/a Yes
Games - n/a Yes
Java (J2ME) - n/a -
Voice
Headset Jack (2.5 mm) Yes n/a -
Speaker Phone - - Yes
  Samsung SCH-A220 BlackBerry 7750 Huawei M750
  X > < X > < X

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Phone Samsung SCH-A220 BlackBerry 7750 Huawei M750

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