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Phone Samsung SCH-A645 Samsung SGH-P500 Motorola RIZR Z6tv Motorola KRZR K1m Samsung SGH-A657
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? ? 2" diag.
4 : 3
? ?
Display Resolution & Type 128 x 160 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 1,000 mAh 900 mAh 940 mAh 880 mAh 1,420 mAh
Processor ? ? ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - Yes 2 megapixel 1 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? ? ? -
Front Camera - - - - -
Weight 3.2 oz
(91g)
3.28 oz
(93g)
3.7 oz
(105g)
3.63 oz
(103g)
4.34 oz
(123g)
Dimensions 3.54" x 1.79" x 0.94"
(90 x 45 x 23.9 mm)
3.54" x 1.81" x 0.91"
(90 x 46 x 23.1 mm)
4.15" x 1.79" x 0.64"
(105 x 46 x 16.3 mm)
4.06" x 1.73" x 0.67"
(103 x 44 x 17 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
Form Factor Clamshell Clamshell Slide Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT GPRS EVDO r0 EVDO r0 HSDPA 3.6
Features 
Flashlight - - - - Yes
GPS / Location Yes - Yes Yes Yes
Ruggedized - - - - Yes
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
- Yes
M3 (mostly compatible)
Yes
M3 (mostly compatible)
-
Multiple Languages Yes Yes Yes Yes Yes
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display Yes Yes - Yes -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth - - Yes Yes Yes
Infrared (IR) - Yes - - -
USB - - Yes Yes
Mini-USB
Yes
Contacts
Picture ID Yes - Yes Yes Yes
Ringer ID - - Yes Yes Yes
Voice Dialing Yes - Yes Yes -
Customization
Custom Graphics Yes Yes Yes Yes Yes
Custom Ringtones Yes Yes Yes Yes Yes
Real-Music Ringers - - - - Yes
Data & Network
Data Tethering - - Yes Yes Yes
WAP / Web Browser Yes * 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 Yes Yes -
Instant Messaging - - Yes Yes * Yes
MMS - Yes Yes Yes Yes
Text Messaging Templates Yes Yes Yes Yes Yes
Music
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 Yes - - Yes
Voice Memo Yes Yes Yes Yes Yes
Software
BREW Yes * - Yes Yes * -
Games Yes * Yes Yes Yes Yes
Java (J2ME) - Yes - Yes * Yes
Voice
Headset Jack (2.5 mm) Yes - Yes - -
Push-To-Talk - - - - Yes
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung SCH-A645 Samsung SGH-P500 Motorola RIZR Z6tv Motorola KRZR K1m Samsung SGH-A657
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Phone Samsung SCH-A645 Samsung SGH-P500 Motorola RIZR Z6tv Motorola KRZR K1m Samsung SGH-A657

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