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Phone ZTE Z331 BlackBerry Curve 3G 9330 Sanyo Katana DLX
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
2.5" diag.
4 : 3
2" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~160 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ?
Battery 950 mAh 1,150 mAh 920 mAh
Processor ? ? ?
RAM ? ? ?
Storage ? raw hardware ? raw hardware ? raw hardware
Main Camera 3 megapixel 2 megapixel 1 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture QCIF (176 x 144) ? QCIF (176 x 144)
Front Camera - - -
Weight 4 oz
(113g)
3.7 oz
(105g)
3.5 oz
(99g)
Dimensions 3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
4.29" x 2.36" x 0.55"
(109 x 60 x 14 mm)
3.7" x 1.9" x 0.68"
(94 x 48 x 17.3 mm)
Form Factor Clamshell Slab Clamshell
Platform / OS (proprietary) BlackBerry OS (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology HSDPA 3.6 EVDO r0 EVDO r0
Features 
GPS / Location Yes n/a Yes
Accessibility
Adjustable Text Size - n/a Yes
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes
Alerts
Extra Display Yes - Yes
Ringer Profiles Yes Yes -
Connectivity
Bluetooth Yes Yes Yes
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - Yes
802.11 b,g
-
Contacts
Picture ID Yes n/a Yes
Ringer ID Yes n/a Yes
Voice Dialing - n/a Yes
Customization
Custom Graphics Yes n/a Yes
Custom Ringtones Yes n/a Yes
Real-Music Ringers Yes n/a Yes
Data & Network
Data Tethering Yes n/a Yes
External Antenna Jack - n/a Yes
WAP / Web Browser Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes
Side Keys Yes Yes Yes
Text Keyboard, Hardware - Yes -
Memory
Memory Card Slot Yes Yes Yes
Messaging
Email Client Yes n/a -
Instant Messaging Yes n/a -
MMS Yes n/a -
Text Messaging Templates Yes n/a Yes
Music
Headphone Jack (3.5mm) - Yes -
Music Player Yes n/a Yes
Productivity
Alarm Yes n/a Yes
Calculator Yes n/a Yes
Calendar Yes n/a Yes
To-Do List - n/a Yes
Voice Memo Yes n/a Yes
Software
Games Yes n/a Yes
Java (J2ME) Yes n/a Yes
Voice
Call Screening - - Yes
Headset Jack (2.5 mm) - n/a Yes
Speaker Phone Yes Yes Yes
  ZTE Z331 BlackBerry Curve 3G 9330 Sanyo Katana DLX
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Phone ZTE Z331 BlackBerry Curve 3G 9330 Sanyo Katana DLX

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