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Phone Motorola EM330 / EM28 Samsung Rugby A837 ZTE F160 Motorola i580
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
2" diag.
4 : 3
2.4" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ?
Battery 940 mAh 1,000 mAh 900 mAh ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel 1 megapixel 3 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? QCIF (176 x 144) QCIF (176 x 144) ?
Front Camera - - - -
Weight 3.17 oz
(90g)
4.66 oz
(132g)
2.96 oz
(84g)
4.9 oz
(139g)
Dimensions 3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
4.57" x 1.93" x 0.44"
(116 x 49 x 11.2 mm)
3.68" x 2.2" x 1.2"
(93 x 56 x 30.5 mm)
Form Factor Clamshell Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 850, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

iDEN: 800

Data Technology EDGE HSDPA 3.6 HSDPA 3.6 WiDEN
Features 
GPS / Location - Yes Yes Yes
Ruggedized - Yes - Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes Yes - Yes
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes
USB Yes
Mini-USB
Yes Yes
Micro-USB
-
Contacts
Picture ID - Yes - Yes
Ringer ID - Yes Yes Yes
Voice Dialing - - - Yes
Customization
Custom Graphics Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes
Real-Music Ringers Yes Yes Yes -
Data & Network
Data Tethering - Yes - Yes
WAP / Web Browser Yes Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes Yes
Side Keys Yes Yes Yes Yes
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client - Yes - -
EMS / Picture Messaging Yes - - -
Instant Messaging - Yes Yes -
MMS Yes Yes Yes Yes
Text Messaging Templates Yes Yes Yes Yes
Music
FM Radio Yes - - -
Headphone Jack (3.5mm) Yes - Yes -
Music Player Yes Yes Yes Yes *
Productivity
Alarm Yes Yes Yes -
Calculator Yes Yes Yes Yes *
Calendar Yes Yes Yes Yes
Voice Memo - Yes Yes Yes
Software
Games Yes Yes Yes Yes
Java (J2ME) Yes Yes Yes Yes
Voice
Headset Jack (2.5 mm) - - - Yes
Push-To-Talk - Yes - Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Motorola EM330 / EM28 Samsung Rugby A837 ZTE F160 Motorola i580
  X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola EM330 / EM28 Samsung Rugby A837 ZTE F160 Motorola i580

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