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Phone HP Pre 3 (CDMA) Motorola RIZR Z3 Samsung SGH-X640
Current U.S. Carriers (none) (none) (none)
Global Availability Not yet released Released Released
Specifications 
Display Size 3.6" diag.
5 : 3
? ?
Display Resolution & Type 480 x 800 pixels
(~261 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 1,230 mAh 780 mAh 800 mAh
Processor 1.4 GHz Qualcomm Snapdragon S2 MSM8655 ? ?
RAM ? ? ?
Storage 16 GB * ? raw hardware ? raw hardware
Main Camera 5 megapixel 2 megapixel Yes
Wide Camera - - -
Tele Camera - - -
Video Capture 720p HD QCIF (176 x 144) -
Front Camera Yes - -
Weight 5.5 oz
(156g)
3.92 oz
(111g)
3 oz
(85g)
Dimensions 4.37" x 2.52" x 0.63"
(111 x 64 x 16 mm)
4.15" x 1.79" x 0.65"
(105 x 45 x 16.5 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
Form Factor Slide Slide Clamshell
Platform / OS (proprietary) (proprietary) (proprietary)
Network Bands

WCDMA: 1, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology EVDO rA EDGE GPRS
Features 
GPS / Location Yes - -
Accessibility
Hearing Aid Compatible Yes - -
Multiple Languages Yes Yes Yes
TTY/TDD (Digital) - Yes -
Alerts
Ringer Profiles - Yes -
Connectivity
Bluetooth Yes Yes -
Mobile Hotspot Yes - -
USB Yes
Micro-USB
Yes
Mini-USB
-
Wi-Fi Yes
4 (802.11 a,b,g,n)
- -
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 Yes -
Data & Network
Data Tethering Yes Yes -
WAP / Web Browser Yes Yes Yes
Input
Predictive Text Entry - Yes Yes
Side Keys Yes Yes Yes
Text Keyboard, Hardware Yes - -
Touch Screen Yes
Capacitive
- -
Memory
Memory Card Slot - Yes -
Messaging
Email Client Yes Yes * -
EMS / Picture Messaging - Yes Yes
Instant Messaging Yes Yes -
MMS Yes Yes Yes
Text Messaging Templates - Yes Yes
Music
Headphone Jack (3.5mm) Yes - -
Music Player Yes Yes -
Productivity
Alarm Yes Yes Yes
Calculator Yes Yes Yes
Calendar Yes Yes Yes
To-Do List Yes - Yes
Voice Memo - Yes Yes
Software
Games Yes Yes Yes
Java (J2ME) - Yes Yes
Voice
Headset Jack (2.5 mm) - - Yes
Speaker Phone Yes Yes Yes
  * Some versions only
  HP Pre 3 (CDMA) Motorola RIZR Z3 Samsung SGH-X640
  X > < X > < X

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

 
Phone HP Pre 3 (CDMA) Motorola RIZR Z3 Samsung SGH-X640

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