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Phone Ericsson T66 Samsung Galaxy Ring / Prevail 2 Casio G'zOne Rock Siemens CT66 / C66 / C65 / C71 / C70
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
2.1" diag.
4 : 3
?
Display Resolution & Type ? 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
130 x 130 pixels
LCD (Color)
Display Refresh ? 60 Hz ? ?
Battery ? 1,750 mAh 1,150 mAh 600 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon S2 MSM8655 ? ?
RAM ? 1 GB ? ?
Storage ? raw hardware 4 GB ? raw hardware ? raw hardware
Main Camera - 5 megapixel 2 megapixel Yes
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 720p HD ? -
Front Camera - 1 megapixel - -
Weight 2.08 oz
(59g)
3.4 oz
(96g)
4.4 oz
(125g)
3 oz
(85g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
4.1" x 1.8" x 0.7"
(104 x 46 x 17.8 mm)
Form Factor Slab Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 800, 850, 1900

CDMA: 850, 1900

GSM: 850, 1800, 1900

*

Data Technology - EVDO rA EVDO rA GPRS
Features 
Flashlight - - Yes -
GPS / Location - n/a Yes -
Ruggedized - - Yes -
Water-Resistant - - Yes -
Accessibility
Adjustable Text Size - n/a - -
Hearing Aid Compatible - Yes Yes -
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - - Yes -
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - - Yes
USB - Yes Yes Yes
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- -
Contacts
Picture ID - n/a Yes Yes
Ringer ID - n/a Yes Yes
Voice Dialing - n/a Yes -
Customization
Changeable Body Plates - - - Yes
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers - n/a Yes -
Data & Network
Data Tethering - n/a Yes -
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes -
Touch Screen - Yes - -
Memory
Memory Card Slot - Yes Yes -
Messaging
Email Client - n/a Yes -
EMS / Picture Messaging Yes n/a - Yes
Instant Messaging - n/a Yes -
MMS - n/a Yes Yes
Text Messaging Templates Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes - -
Music Player - n/a Yes -
Photo & Video
DLNA - Yes - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes Yes
To-Do List Yes n/a - Yes
Voice Memo - n/a Yes Yes
Software
BREW - n/a Yes -
Games Yes n/a Yes Yes
Java (J2ME) - n/a - Yes
Voice
Call Screening - - - Yes
Headset Jack (2.5 mm) - n/a Yes -
Push-To-Talk - - Yes Yes *
Speaker Phone - Yes Yes Yes
  * Some versions only
  Ericsson T66 Samsung Galaxy Ring / Prevail 2 Casio G'zOne Rock Siemens CT66 / C66 / C65 / C71 / C70
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Samsung Galaxy Ring / Prevail 2 Casio G'zOne Rock Siemens CT66 / C66 / C65 / C71 / C70

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