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Phone Samsung SGH-X820 Motorola RIZR Z6tv HTC Shadow Samsung SCH-A570
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2" diag.
4 : 3
2.6" diag.
4 : 3
?
Display Resolution & Type 220 x 176 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
Display Refresh ? ? ? ?
Battery 650 mAh 940 mAh 920 mAh ?
Processor ? ? 200 MHz OMAP 850 ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 2 megapixel 2 megapixel 2 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? ? ? -
Front Camera - - - -
Weight 2.33 oz
(66g)
3.7 oz
(105g)
5.29 oz
(150g)
3.6 oz
(102g)
Dimensions 4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
4.15" x 1.79" x 0.64"
(105 x 46 x 16.3 mm)
4.06" x 2.09" x 0.59"
(103 x 53 x 15 mm)
3.3" x 1.8" x 0.9"
(84 x 46 x 22.9 mm)
Form Factor Slab Slide Slide Clamshell
Platform / OS (proprietary) (proprietary) Windows Mobile Standard (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology EDGE EVDO r0 EDGE 1xRTT
Features 
GPS / Location - Yes n/a Yes
Accessibility
Hearing Aid Compatible - Yes
M3 (mostly compatible)
- -
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) - Yes - Yes
Alerts
Extra Display - - - Yes
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes Yes Yes -
USB Yes Yes Yes
Mini-USB
-
Wi-Fi - - Yes
802.11 b,g
-
Contacts
Picture ID Yes Yes n/a -
Ringer ID Yes Yes n/a -
Voice Dialing - Yes n/a Yes
Customization
Custom Graphics Yes Yes n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a -
Data & Network
Data Tethering - Yes n/a -
External Antenna Jack Yes - n/a -
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Memory
Memory Card Slot - Yes Yes -
Messaging
Email Client Yes - n/a -
EMS / Picture Messaging Yes Yes n/a Yes
Instant Messaging - Yes n/a -
MMS Yes Yes n/a -
Text Messaging Templates Yes Yes n/a Yes
Music
Music Player - Yes n/a -
Photo & Video
TV Output Yes - - -
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
To-Do List Yes - n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW - Yes n/a Yes
Games Yes Yes n/a Yes
Java (J2ME) Yes - n/a -
Voice
Headset Jack (2.5 mm) - Yes n/a Yes
Speaker Phone Yes Yes Yes -
  Samsung SGH-X820 Motorola RIZR Z6tv HTC Shadow Samsung SCH-A570
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X820 Motorola RIZR Z6tv HTC Shadow Samsung SCH-A570

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