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Phone Samsung SGH-A157 Kyocera 7135 Samsung SGH-D307 Siemens A56 / A56i
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
? ? ?
Display Resolution & Type 128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
160 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
101 x 64 pixels
Display Refresh ? ? ? ?
Battery 800 mAh ? ? 700 mAh
Processor ? 33 MHz DragonBall ? ?
RAM ? ? ? ?
Storage 256 MB ? raw hardware ? raw hardware ? raw hardware
Main Camera - - - -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - -
Front Camera - - - -
Weight 2.99 oz
(85g)
6.6 oz
(187g)
4.3 oz
(122g)
3 oz
(85g)
Dimensions 3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
3.97" x 2.43" x 1.17"
(101 x 62 x 29.7 mm)
3.7" x 1.9" x 0.85"
(94 x 48 x 21.6 mm)
4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
Form Factor Clamshell Clamshell Clamshell Slab
Platform / OS (proprietary) Palm OS (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 1800, 1900

GSM: 850, 1900

Data Technology ? 1xRTT EDGE -
Features 
GPS / Location Yes n/a - Yes
Accessibility
Adjustable Text Size Yes n/a - -
Hearing Aid Compatible Yes - Yes -
Multiple Languages Yes n/a Yes -
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display - Yes Yes -
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth -
-
Yes
Classic Audio
-
Infrared (IR) - Yes - -
USB Yes
Micro-USB
Yes Yes -
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes 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 Yes 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 -
Text Keyboard, Hardware - - Yes -
Touch Screen - Yes - -
Memory
Memory Card Slot - Yes - -
Messaging
Email Client - n/a Yes -
EMS / Picture Messaging - n/a Yes Yes
MMS Yes n/a Yes -
Text Messaging Templates Yes n/a Yes -
Music
Music Player - n/a - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes Yes
Calendar Yes n/a Yes -
To-Do List Yes n/a Yes -
Voice Memo Yes n/a Yes -
Software
Games - n/a Yes Yes
Java (J2ME) - n/a Yes -
Voice
Headset Jack (2.5 mm) - n/a - -
Speaker Phone Yes Yes Yes -
  Samsung SGH-A157 Kyocera 7135 Samsung SGH-D307 Siemens A56 / A56i
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-A157 Kyocera 7135 Samsung SGH-D307 Siemens A56 / A56i

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