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Phone Sanyo RL-4920 Samsung SCH-U430 Samsung SGH-A157
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? ? 1.8" diag.
4 : 3
Display Resolution & Type 128 x 112 pixels
LCD (Color)
128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 1,700 mAh 1,000 mAh 800 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware 256 MB
Main Camera - Yes -
Wide Camera - - -
Tele Camera - - -
Video Capture - - -
Front Camera - - -
Weight 4.03 oz
(114g)
3.21 oz
(91g)
2.99 oz
(85g)
Dimensions 4.22" x 1.85" x 0.85"
(107 x 47 x 21.6 mm)
3.67" x 1.85" x 0.78"
(93 x 47 x 19.8 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
Form Factor Slab Clamshell Clamshell
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT 1xRTT ?
Features 
GPS / Location Yes Yes Yes
Accessibility
Adjustable Text Size - Yes Yes
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M4 (very compatible)
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes
Alerts
Extra Display - Yes -
Ringer Profiles - - Yes
Connectivity
Bluetooth - Yes -
USB Yes - Yes
Micro-USB
Contacts
Picture ID Yes Yes Yes
Ringer ID Yes Yes Yes
Voice Dialing Yes Yes -
Customization
Custom Graphics Yes Yes Yes
Custom Ringtones Yes Yes Yes
Real-Music Ringers - - Yes
Data & Network
WAP / Web Browser Yes Yes Yes
Input
Predictive Text Entry Yes Yes Yes
Side Keys Yes Yes -
Messaging
Email Client - Yes -
EMS / Picture Messaging - Yes -
Instant Messaging - Yes -
MMS - Yes Yes
Text Messaging Templates - Yes Yes
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List Yes - Yes
Voice Memo Yes Yes Yes
Software
BREW - Yes -
Games Yes Yes -
Java (J2ME) Yes - -
Voice
Call Screening Yes - -
Headset Jack (2.5 mm) Yes Yes -
Push-To-Talk Yes - -
Speaker Phone Yes Yes Yes
  Sanyo RL-4920 Samsung SCH-U430 Samsung SGH-A157
  X > < X > < X

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

 
Phone Sanyo RL-4920 Samsung SCH-U430 Samsung SGH-A157

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