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Phone Casio G'zOne Rock Nokia 7900 Prism Samsung Galaxy Ring / Prevail 2 Huawei W1 UTStarcom CDM-8905
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? 4" diag.
5 : 3
4" diag.
5 : 3
?
Display Resolution & Type 240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
240 x 320 pixels
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh ? ? 60 Hz ? ?
Battery 1,150 mAh 830 mAh 1,750 mAh 1,950 mAh 1,100 mAh
Processor ? ? 1.4 GHz Qualcomm Snapdragon S2 MSM8655 1.2 GHz Qualcomm Snapdragon 400 MSM8230 ?
RAM ? ? 1 GB 512 MB ?
Storage ? raw hardware ? raw hardware 4 GB 4 GB ? raw hardware
Main Camera 2 megapixel 2 megapixel 5 megapixel 5 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? QCIF (176 x 144) 720p HD 720p HD -
Front Camera - - 1 megapixel Yes -
Weight 4.4 oz
(125g)
3.56 oz
(101g)
3.4 oz
(96g)
4.41 oz
(125g)
3.5 oz
(99g)
Dimensions 4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
4.41" x 1.77" x 0.43"
(112 x 45 x 10.9 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
4.84" x 2.5" x 0.41"
(123 x 64 x 10.4 mm)
3.3" x 1.75" x 0.81"
(84 x 44 x 20.6 mm)
Form Factor Clamshell Slab Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) Android Windows (proprietary)
Network Bands

CDMA: 850, 1900

WCDMA: 1, 5

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology EVDO rA EDGE EVDO rA HSPA+ 21 -
Features 
Flashlight Yes - - - -
GPS / Location Yes - n/a n/a Yes
Ruggedized Yes - - - -
Water-Resistant Yes - - - -
Accessibility
Adjustable Text Size - - n/a n/a -
Hearing Aid Compatible Yes - Yes Yes -
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) Yes - Yes - Yes
Alerts
Extra Display Yes - - - Yes
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes -
USB Yes Yes
Micro-USB
Yes Yes
Micro-USB
-
Wi-Fi - - Yes
4 (802.11 a,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes n/a n/a -
Ringer ID Yes Yes n/a n/a Yes
Voice Dialing Yes Yes n/a n/a Yes
Customization
Custom Graphics Yes Yes n/a n/a -
Custom Ringtones Yes Yes n/a n/a -
Real-Music Ringers Yes Yes n/a n/a -
Data & Network
Data Tethering Yes Yes n/a n/a -
WAP / Web Browser Yes Yes n/a n/a -
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes - Yes Yes Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client Yes Yes n/a n/a -
Instant Messaging Yes - n/a n/a -
MMS Yes Yes n/a n/a -
Text Messaging Templates Yes Yes n/a n/a Yes
Music
Headphone Jack (3.5mm) - - Yes Yes -
Music Player Yes Yes n/a n/a -
Photo & Video
DLNA - - 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 n/a n/a -
Voice Memo Yes Yes n/a n/a Yes
Software
BREW Yes - n/a n/a -
Games Yes Yes n/a n/a -
Java (J2ME) - Yes n/a n/a -
Voice
Headset Jack (2.5 mm) Yes - n/a n/a Yes
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Casio G'zOne Rock Nokia 7900 Prism Samsung Galaxy Ring / Prevail 2 Huawei W1 UTStarcom CDM-8905
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Casio G'zOne Rock Nokia 7900 Prism Samsung Galaxy Ring / Prevail 2 Huawei W1 UTStarcom CDM-8905

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