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Phone Samsung Knack U310 Motorola PEBL U6 Samsung Sway U650 BlackBerry 7750
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? 2.2" diag.
4 : 3
?
Display Resolution & Type 176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ? ?
Battery 1,000 mAh 740 mAh ? ?
Processor ? ? ? ?
RAM ? ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera - Yes 2 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - ? ? -
Front Camera - - - -
Weight 3.63 oz
(103g)
3.88 oz
(110g)
3.56 oz
(101g)
5.01 oz
(142g)
Dimensions 3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
1.93" x 3.41" x 0.79"
(49 x 87 x 20.1 mm)
4.15" x 1.96" x 0.47"
(105 x 50 x 11.9 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Clamshell Clamshell Slide Slab
Platform / OS (proprietary) (proprietary) (proprietary) BlackBerry OS
Network Bands

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology - GPRS 1xRTT 1xRTT
Features 
GPS / Location Yes - Yes n/a
Accessibility
Adjustable Text Size Yes - Yes n/a
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
- Yes
M4 (very compatible)
-
Multiple Languages Yes Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes Yes - -
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth - Yes Yes -
USB - Yes
Mini-USB
Yes Yes
Contacts
Picture ID - Yes Yes n/a
Ringer ID - Yes Yes n/a
Voice Dialing Yes Yes Yes n/a
Customization
Custom Graphics - Yes Yes n/a
Custom Ringtones - Yes Yes n/a
Real-Music Ringers - Yes Yes n/a
Data & Network
Data Tethering - Yes - n/a
WAP / Web Browser - Yes Yes n/a
Input
Predictive Text Entry Yes Yes Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Memory
Memory Card Slot - - Yes -
Messaging
Email Client - Yes Yes n/a
EMS / Picture Messaging Yes Yes Yes n/a
Instant Messaging - - Yes n/a
MMS - Yes Yes n/a
Text Messaging Templates - Yes Yes n/a
Music
Music Player - - Yes n/a
Productivity
Alarm Yes Yes Yes n/a
Calculator Yes Yes Yes n/a
Calendar Yes Yes Yes n/a
To-Do List - - - n/a
Voice Memo - Yes Yes n/a
Software
BREW - - Yes n/a
Games - Yes Yes n/a
Java (J2ME) - Yes - n/a
Voice
Headset Jack (2.5 mm) Yes - - n/a
Speaker Phone Yes Yes Yes -
  Samsung Knack U310 Motorola PEBL U6 Samsung Sway U650 BlackBerry 7750
  X > < X > < X > < X

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

 
Phone Samsung Knack U310 Motorola PEBL U6 Samsung Sway U650 BlackBerry 7750

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