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Phone Ericsson T66 Siemens CF75 BlackBerry 7750 Sony Xperia ion Casio Exilim C721
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? ? ? 4.6" diag.
16 : 9
2.3" diag.
4 : 3
Display Resolution & Type ? 128 x 160 pixels
LCD (STN)
240 x 240 pixels
LCD (Color)
720 x 1280 pixels
(~323 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~174 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery ? 600 mAh ? 1,900 mAh 920 mAh
Processor ? ? ? 1.5 GHz Qualcomm Snapdragon S3 MSM8260 ?
RAM ? ? ? 1 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB ? raw hardware
Main Camera - Yes - 12 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - - 1080p HD QVGA (320 x 240)
Front Camera - - - 1 megapixel -
Weight 2.08 oz
(59g)
3.17 oz
(90g)
5.01 oz
(142g)
5.1 oz
(145g)
4.48 oz
(127g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.43" x 1.73" x 1.26"
(87 x 44 x 32 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
5.2" x 2.7" x 0.4"
(132 x 69 x 10.2 mm)
4.06" x 1.97" x 0.78"
(103 x 50 x 19.9 mm)
Form Factor Slab Clamshell Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) BlackBerry OS Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 4, 17

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology - EDGE 1xRTT LTE (Cat 3) EVDO rA
Features 
Flashlight - - - - Yes
GPS / Location - - n/a n/a Yes
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
Accessibility
Adjustable Text Size - - n/a n/a Yes
Hearing Aid Compatible - - - Yes Yes
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) - - Yes - Yes
Alerts
Extra Display - Yes - - Yes
Ringer Profiles Yes - Yes - -
Connectivity
Bluetooth - - - Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
Mobile Hotspot - - n/a n/a -
USB - Yes Yes Yes Yes
Wi-Fi - - - Yes -
Contacts
Picture ID - - n/a n/a Yes
Ringer ID - - n/a n/a Yes
Voice Dialing - - n/a n/a Yes
Customization
Custom Graphics Yes Yes n/a n/a Yes
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers - - n/a n/a Yes
Data & Network
Data Tethering - Yes n/a n/a Yes
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen - - - Yes -
Memory
Memory Card Slot - - - Yes Yes
Messaging
Email Client - Yes n/a n/a -
EMS / Picture Messaging Yes Yes n/a n/a Yes
Instant Messaging - - n/a n/a Yes
MMS - Yes n/a n/a Yes
Text Messaging Templates Yes Yes n/a n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes -
Music Player - - n/a n/a Yes
Photo & Video
DLNA - - - Yes -
TV Output - - - Yes -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List Yes Yes n/a n/a Yes
Voice Memo - Yes n/a n/a Yes
Software
BREW - - n/a n/a Yes
Games Yes Yes n/a n/a Yes
Java (J2ME) - Yes n/a n/a -
Voice
Headset Jack (2.5 mm) - - n/a n/a -
Push-To-Talk - Yes - - -
Speaker Phone - Yes - Yes Yes
  Ericsson T66 Siemens CF75 BlackBerry 7750 Sony Xperia ion Casio Exilim C721
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Phone Ericsson T66 Siemens CF75 BlackBerry 7750 Sony Xperia ion Casio Exilim C721

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