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Phone Samsung SGH-D307 ZTE Engage LT / Engage MT BlackBerry Curve 3G 9330 Samsung SCH-A990 Samsung M400
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
2.5" diag.
4 : 3
? 2.4" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~160 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? ?
Battery ? 1,900 mAh 1,150 mAh 1,000 mAh 1,000 mAh
Processor ? ? ? ? 400 MHz Qualcomm QSC6155
RAM ? 1 GB ? ? 128 MB
Storage ? raw hardware 4 GB ? raw hardware ? raw hardware 256 MB
Main Camera - 3 megapixel 2 megapixel 3 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - WVGA / 480p ? ? -
Front Camera - Yes - - -
Weight 4.3 oz
(122g)
5.09 oz
(144g)
3.7 oz
(105g)
4.4 oz
(125g)
3.7 oz
(105g)
Dimensions 3.7" x 1.9" x 0.85"
(94 x 48 x 21.6 mm)
4.78" x 2.54" x 0.46"
(121 x 64 x 11.7 mm)
4.29" x 2.36" x 0.55"
(109 x 60 x 14 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
Form Factor Clamshell Slab Slab Clamshell Clamshell
Platform / OS (proprietary) Android BlackBerry OS (proprietary) (proprietary)
Network Bands

GSM: 850, 1800, 1900

CDMA: 850, 1700, 1900

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 800, 850, 1900

Data Technology EDGE EVDO rA EVDO r0 EVDO r0 1xRTT
Features 
Flashlight - - - Yes -
GPS / Location - n/a n/a Yes Yes
Accessibility
Adjustable Text Size - n/a n/a - Yes
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - - Yes Yes
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi - Yes Yes
802.11 b,g
- -
Contacts
Picture ID Yes n/a n/a Yes Yes
Ringer ID Yes n/a n/a Yes Yes
Voice Dialing Yes n/a n/a Yes Yes
Customization
Custom Graphics Yes n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers Yes n/a n/a Yes Yes
Data & Network
Data Tethering Yes n/a n/a Yes -
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes - -
Touch Screen - Yes - - -
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client Yes n/a n/a - -
EMS / Picture Messaging Yes n/a n/a Yes -
Instant Messaging - n/a n/a - -
MMS Yes n/a n/a Yes Yes
Text Messaging Templates Yes n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player - n/a n/a Yes -
Stereo Speakers - - - Yes -
Photo & Video
TV Output - - - Yes -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List Yes n/a n/a - -
Voice Memo Yes n/a n/a Yes Yes
Software
BREW - n/a n/a Yes -
Games Yes n/a n/a Yes Yes
Java (J2ME) Yes n/a n/a - -
Voice
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-D307 ZTE Engage LT / Engage MT BlackBerry Curve 3G 9330 Samsung SCH-A990 Samsung M400
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Phone Samsung SGH-D307 ZTE Engage LT / Engage MT BlackBerry Curve 3G 9330 Samsung SCH-A990 Samsung M400

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