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Phone Samsung SGH-X640 Apple iPhone 4 (GSM) Motorola ROKR Z6 BlackBerry 7750 Samsung SGH-R225 / SGH-R225M
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 3.5" diag.
5 : 3
? ? ?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
128 x 64 pixels
Display Refresh ? 60 Hz ? ? ?
Battery 800 mAh ? 750 mAh ? ?
Processor ? Apple A4 ? ? ?
RAM ? ? ? ? ?
Storage ? raw hardware 32 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera Yes 5 megapixel 2 megapixel - -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 720p HD ? - -
Front Camera - Yes - - -
Weight 3 oz
(85g)
4.8 oz
(136g)
4.06 oz
(115g)
5.01 oz
(142g)
3.35 oz
(95g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
4.15" x 1.79" x 0.63"
(105 x 45 x 16 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
4.33" x 1.81" x 0.93"
(110 x 46 x 23.6 mm)
Form Factor Clamshell Slab Slide Slab Slab
Platform / OS (proprietary) iOS (proprietary) BlackBerry OS (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1900

Data Technology GPRS HSPA 7.2 EDGE 1xRTT -
Features 
GPS / Location - n/a - n/a -
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
- - -
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth - Yes Yes - -
Mobile Hotspot - n/a - n/a -
USB - Yes Yes Yes -
Wi-Fi - Yes
4 (802.11 b,g,n)
- - -
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing - n/a - n/a -
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering - n/a Yes n/a Yes
WAP / Web Browser Yes n/a Yes n/a -
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes -
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes
Capacitive
- - -
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client - n/a Yes n/a -
EMS / Picture Messaging Yes n/a Yes n/a -
Instant Messaging - n/a Yes n/a -
MMS Yes n/a Yes n/a Yes
Text Messaging Templates Yes n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - Yes - - -
Music Player - n/a Yes n/a -
Photo & Video
TV Output - Yes - - -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a Yes n/a -
Voice Memo Yes n/a Yes n/a -
Software
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a Yes n/a -
Voice
Headset Jack (2.5 mm) Yes n/a - n/a Yes
Speaker Phone Yes Yes Yes - -
  * Some versions only
  Samsung SGH-X640 Apple iPhone 4 (GSM) Motorola ROKR Z6 BlackBerry 7750 Samsung SGH-R225 / SGH-R225M
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Apple iPhone 4 (GSM) Motorola ROKR Z6 BlackBerry 7750 Samsung SGH-R225 / SGH-R225M

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