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Phone Samsung SCH-U340 / Snap Casio G'zOne Rock Samsung SGH-X640 Motorola EM330 / EM28 Sonim XP3
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
? 1.8" diag.
4 : 3
2.6" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 1,000 mAh 1,150 mAh 800 mAh 940 mAh 1,500 mAh
Processor ? ? ? ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM ? ? ? ? 1 GB
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 8 GB
Main Camera Yes 2 megapixel Yes 1 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? - ? ?
Front Camera - - - - -
Weight 2.82 oz
(80g)
4.4 oz
(125g)
3 oz
(85g)
3.17 oz
(90g)
6.88 oz
(195g)
Dimensions 3.5" x 1.8" x 0.77"
(89 x 46 x 19.6 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
4.4" x 2.3" x 1.1"
(112 x 58 x 27.9 mm)
Form Factor Clamshell Clamshell Clamshell Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 8, 12, 13, 14, 25, 26, 38, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology - EVDO rA GPRS EDGE LTE (Cat 4)
Features 
Barometer - - - - Yes
Flashlight - Yes - - Yes
GPS / Location Yes Yes - - Yes
Ruggedized - Yes - - Yes
Water-Resistant - Yes - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - - - - Yes
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages Yes Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes Yes - Yes Yes
Ringer Profiles - - - - Yes
Connectivity
Bluetooth -
Yes
Classic Audio
-
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - - - Yes
USB - Yes - Yes
Mini-USB
Yes
USB Type C
Wi-Fi - - - - Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes Yes Yes - -
Ringer ID Yes Yes Yes - Yes
Voice Dialing Yes Yes - - Yes
Customization
Custom Graphics - Yes Yes Yes Yes
Custom Ringtones - Yes Yes Yes Yes
Real-Music Ringers - Yes - Yes -
Data & Network
Data Tethering - Yes - - Yes
Dual-SIM - - - - Yes
WAP / Web Browser - Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Memory
Memory Card Slot - Yes - Yes Yes
Messaging
Email Client - Yes - - -
EMS / Picture Messaging - - Yes Yes -
Instant Messaging Yes Yes - - -
MMS Yes Yes Yes Yes Yes
Text Messaging Templates Yes Yes Yes Yes Yes
Music
FM Radio - - - Yes Yes
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - Yes - Yes Yes
Productivity
Alarm Yes Yes Yes Yes Yes
Calculator Yes Yes Yes Yes Yes
Calendar Yes Yes Yes Yes Yes
To-Do List - - Yes - -
Voice Memo - Yes Yes - Yes
Software
BREW - Yes - - -
Games - Yes Yes Yes -
Java (J2ME) - - Yes Yes -
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) Yes Yes Yes - -
Push-To-Talk - Yes - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SCH-U340 / Snap Casio G'zOne Rock Samsung SGH-X640 Motorola EM330 / EM28 Sonim XP3
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-U340 / Snap Casio G'zOne Rock Samsung SGH-X640 Motorola EM330 / EM28 Sonim XP3

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