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Phone Ericsson R278d Siemens SK65 BlackBerry 7750
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? ?
Display Resolution & Type 101 x 40 pixels 132 x 176 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ?
Battery ? 750 mAh ?
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera - - -
Wide Camera - - -
Tele Camera - - -
Video Capture - - -
Front Camera - - -
Weight 9.28 oz
(263g)
5.08 oz
(144g)
5.01 oz
(142g)
Dimensions 5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
4.72" x 1.85" x 0.87"
(120 x 47 x 22.1 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slab Slab Slab
Platform / OS (proprietary) (proprietary) BlackBerry OS
Network Bands

TDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology - GPRS 1xRTT
Features 
GPS / Location - - n/a
Accessibility
Multiple Languages Yes Yes n/a
TTY/TDD (Digital) - - Yes
Alerts
Ringer Profiles Yes - Yes
Connectivity
Bluetooth - Yes -
Infrared (IR) - Yes -
USB - Yes Yes
Customization
Custom Graphics - Yes n/a
Custom Ringtones Yes Yes n/a
Data & Network
Data Tethering Yes Yes n/a
WAP / Web Browser Yes Yes n/a
Input
Predictive Text Entry Yes - n/a
Side Keys Yes Yes Yes
Text Keyboard, Hardware - Yes Yes
Messaging
Email Client - Yes n/a
MMS - Yes n/a
Productivity
Alarm Yes Yes n/a
Calculator - Yes n/a
Calendar - Yes n/a
To-Do List - Yes n/a
Voice Memo - Yes n/a
Software
Games - Yes n/a
Java (J2ME) - Yes n/a
Voice
Headset Jack (2.5 mm) - - n/a
Push-To-Talk - Yes * -
Speaker Phone - Yes -
  * Some versions only
  Ericsson R278d Siemens SK65 BlackBerry 7750
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Phone Ericsson R278d Siemens SK65 BlackBerry 7750

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